Home / 27,915.48-38,523.35-15,340.23

Finding the Fourth Proportional to 27,915.48, 38,523.35 and 15,340.23

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Solution

The fourth proportional to 27,915.48, 38,523.35 and 15,340.23 is: 21,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.48 : 38,523.35 = 15,340.23 : x
  2. Step 2: Convert to fraction form
    27,915.48/38,523.35 = 15,340.23/x
  3. Step 3: Cross multiply
    27,915.48x = 38,523.35 × 15,340.23
  4. Step 4: Simplify right side
    27,915.48x = 590,956,972.67
  5. Step 5: Solve for x
    x = 590,956,972.67/27,915.48
  6. Step 6: Final answer
    x = 21,169.51

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Half scale
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Double scale
Find fourth proportional to 27,916.48, 38,524.72 and 15,341.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.