Home / 25,301.32-34,915.12-13,970.61

Finding the Fourth Proportional to 25,301.32, 34,915.12 and 13,970.61

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Solution

The fourth proportional to 25,301.32, 34,915.12 and 13,970.61 is: 19,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,301.32 : 34,915.12 = 13,970.61 : x
  2. Step 2: Convert to fraction form
    25,301.32/34,915.12 = 13,970.61/x
  3. Step 3: Cross multiply
    25,301.32x = 34,915.12 × 13,970.61
  4. Step 4: Simplify right side
    25,301.32x = 487,785,489.70
  5. Step 5: Solve for x
    x = 487,785,489.70/25,301.32
  6. Step 6: Final answer
    x = 19,279.05

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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.