Home / 27,894.40-38,494.54-15,319.15

Finding the Fourth Proportional to 27,894.40, 38,494.54 and 15,319.15

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Solution

The fourth proportional to 27,894.40, 38,494.54 and 15,319.15 is: 21,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,894.40 : 38,494.54 = 15,319.15 : x
  2. Step 2: Convert to fraction form
    27,894.40/38,494.54 = 15,319.15/x
  3. Step 3: Cross multiply
    27,894.40x = 38,494.54 × 15,319.15
  4. Step 4: Simplify right side
    27,894.40x = 589,703,555.35
  5. Step 5: Solve for x
    x = 589,703,555.35/27,894.40
  6. Step 6: Final answer
    x = 21,140.57

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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.