Home / 42,020.66-63,011.55-15,724.82

Finding the Fourth Proportional to 42,020.66, 63,011.55 and 15,724.82

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Solution

The fourth proportional to 42,020.66, 63,011.55 and 15,724.82 is: 23,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,020.66 : 63,011.55 = 15,724.82 : x
  2. Step 2: Convert to fraction form
    42,020.66/63,011.55 = 15,724.82/x
  3. Step 3: Cross multiply
    42,020.66x = 63,011.55 × 15,724.82
  4. Step 4: Simplify right side
    42,020.66x = 990,845,281.67
  5. Step 5: Solve for x
    x = 990,845,281.67/42,020.66
  6. Step 6: Final answer
    x = 23,579.96

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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.