Home / 42,437.61-63,641.38-12,443.51

Finding the Fourth Proportional to 42,437.61, 63,641.38 and 12,443.51

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Solution

The fourth proportional to 42,437.61, 63,641.38 and 12,443.51 is: 18,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,437.61 : 63,641.38 = 12,443.51 : x
  2. Step 2: Convert to fraction form
    42,437.61/63,641.38 = 12,443.51/x
  3. Step 3: Cross multiply
    42,437.61x = 63,641.38 × 12,443.51
  4. Step 4: Simplify right side
    42,437.61x = 791,922,148.44
  5. Step 5: Solve for x
    x = 791,922,148.44/42,437.61
  6. Step 6: Final answer
    x = 18,660.86

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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.