Home / 29,538.81-40,740.52-18,929.43

Finding the Fourth Proportional to 29,538.81, 40,740.52 and 18,929.43

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Solution

The fourth proportional to 29,538.81, 40,740.52 and 18,929.43 is: 26,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,538.81 : 40,740.52 = 18,929.43 : x
  2. Step 2: Convert to fraction form
    29,538.81/40,740.52 = 18,929.43/x
  3. Step 3: Cross multiply
    29,538.81x = 40,740.52 × 18,929.43
  4. Step 4: Simplify right side
    29,538.81x = 771,194,821.50
  5. Step 5: Solve for x
    x = 771,194,821.50/29,538.81
  6. Step 6: Final answer
    x = 26,107.85

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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.