Home / 42,609.68-58,806.92-30,712.40

Finding the Fourth Proportional to 42,609.68, 58,806.92 and 30,712.40

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Solution

The fourth proportional to 42,609.68, 58,806.92 and 30,712.40 is: 42,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,609.68 : 58,806.92 = 30,712.40 : x
  2. Step 2: Convert to fraction form
    42,609.68/58,806.92 = 30,712.40/x
  3. Step 3: Cross multiply
    42,609.68x = 58,806.92 × 30,712.40
  4. Step 4: Simplify right side
    42,609.68x = 1,806,101,649.81
  5. Step 5: Solve for x
    x = 1,806,101,649.81/42,609.68
  6. Step 6: Final answer
    x = 42,387.12

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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.