Home / 42,421.73-63,646.43-20,232.22

Finding the Fourth Proportional to 42,421.73, 63,646.43 and 20,232.22

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Solution

The fourth proportional to 42,421.73, 63,646.43 and 20,232.22 is: 30,354.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.73 : 63,646.43 = 20,232.22 : x
  2. Step 2: Convert to fraction form
    42,421.73/63,646.43 = 20,232.22/x
  3. Step 3: Cross multiply
    42,421.73x = 63,646.43 × 20,232.22
  4. Step 4: Simplify right side
    42,421.73x = 1,287,708,386.21
  5. Step 5: Solve for x
    x = 1,287,708,386.21/42,421.73
  6. Step 6: Final answer
    x = 30,354.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.