Home / 25,915.48-38,881.34-9,275.12

Finding the Fourth Proportional to 25,915.48, 38,881.34 and 9,275.12

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Solution

The fourth proportional to 25,915.48, 38,881.34 and 9,275.12 is: 13,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.48 : 38,881.34 = 9,275.12 : x
  2. Step 2: Convert to fraction form
    25,915.48/38,881.34 = 9,275.12/x
  3. Step 3: Cross multiply
    25,915.48x = 38,881.34 × 9,275.12
  4. Step 4: Simplify right side
    25,915.48x = 360,629,094.26
  5. Step 5: Solve for x
    x = 360,629,094.26/25,915.48
  6. Step 6: Final answer
    x = 13,915.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.