Home / 29,384.43-40,540.50-18,780.18

Finding the Fourth Proportional to 29,384.43, 40,540.50 and 18,780.18

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Solution

The fourth proportional to 29,384.43, 40,540.50 and 18,780.18 is: 25,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,384.43 : 40,540.50 = 18,780.18 : x
  2. Step 2: Convert to fraction form
    29,384.43/40,540.50 = 18,780.18/x
  3. Step 3: Cross multiply
    29,384.43x = 40,540.50 × 18,780.18
  4. Step 4: Simplify right side
    29,384.43x = 761,357,887.29
  5. Step 5: Solve for x
    x = 761,357,887.29/29,384.43
  6. Step 6: Final answer
    x = 25,910.25

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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.