Home / 42,197.08-63,293.34-21,420.04

Finding the Fourth Proportional to 42,197.08, 63,293.34 and 21,420.04

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Solution

The fourth proportional to 42,197.08, 63,293.34 and 21,420.04 is: 32,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,197.08 : 63,293.34 = 21,420.04 : x
  2. Step 2: Convert to fraction form
    42,197.08/63,293.34 = 21,420.04/x
  3. Step 3: Cross multiply
    42,197.08x = 63,293.34 × 21,420.04
  4. Step 4: Simplify right side
    42,197.08x = 1,355,745,874.53
  5. Step 5: Solve for x
    x = 1,355,745,874.53/42,197.08
  6. Step 6: Final answer
    x = 32,128.90

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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.