Home / 42,130.50-63,214.20-19,959.72

Finding the Fourth Proportional to 42,130.50, 63,214.20 and 19,959.72

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Solution

The fourth proportional to 42,130.50, 63,214.20 and 19,959.72 is: 29,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,130.50 : 63,214.20 = 19,959.72 : x
  2. Step 2: Convert to fraction form
    42,130.50/63,214.20 = 19,959.72/x
  3. Step 3: Cross multiply
    42,130.50x = 63,214.20 × 19,959.72
  4. Step 4: Simplify right side
    42,130.50x = 1,261,737,732.02
  5. Step 5: Solve for x
    x = 1,261,737,732.02/42,130.50
  6. Step 6: Final answer
    x = 29,948.32

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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.