Home / 42,445.80-63,622.20-21,352.20

Finding the Fourth Proportional to 42,445.80, 63,622.20 and 21,352.20

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Solution

The fourth proportional to 42,445.80, 63,622.20 and 21,352.20 is: 32,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.80 : 63,622.20 = 21,352.20 : x
  2. Step 2: Convert to fraction form
    42,445.80/63,622.20 = 21,352.20/x
  3. Step 3: Cross multiply
    42,445.80x = 63,622.20 × 21,352.20
  4. Step 4: Simplify right side
    42,445.80x = 1,358,473,938.84
  5. Step 5: Solve for x
    x = 1,358,473,938.84/42,445.80
  6. Step 6: Final answer
    x = 32,004.91

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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.