Home / 42,219.38-63,329.01-20,020.64

Finding the Fourth Proportional to 42,219.38, 63,329.01 and 20,020.64

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Solution

The fourth proportional to 42,219.38, 63,329.01 and 20,020.64 is: 30,030.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219.38 : 63,329.01 = 20,020.64 : x
  2. Step 2: Convert to fraction form
    42,219.38/63,329.01 = 20,020.64/x
  3. Step 3: Cross multiply
    42,219.38x = 63,329.01 × 20,020.64
  4. Step 4: Simplify right side
    42,219.38x = 1,267,887,622.31
  5. Step 5: Solve for x
    x = 1,267,887,622.31/42,219.38
  6. Step 6: Final answer
    x = 30,030.94

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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.