Home / 38,989.38-53,742.15-30,476.46

Finding the Fourth Proportional to 38,989.38, 53,742.15 and 30,476.46

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Solution

The fourth proportional to 38,989.38, 53,742.15 and 30,476.46 is: 42,008.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989.38 : 53,742.15 = 30,476.46 : x
  2. Step 2: Convert to fraction form
    38,989.38/53,742.15 = 30,476.46/x
  3. Step 3: Cross multiply
    38,989.38x = 53,742.15 × 30,476.46
  4. Step 4: Simplify right side
    38,989.38x = 1,637,870,484.79
  5. Step 5: Solve for x
    x = 1,637,870,484.79/38,989.38
  6. Step 6: Final answer
    x = 42,008.12

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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.