Home / 42,019.80-63,032.94-12,437.16

Finding the Fourth Proportional to 42,019.80, 63,032.94 and 12,437.16

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Solution

The fourth proportional to 42,019.80, 63,032.94 and 12,437.16 is: 18,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,019.80 : 63,032.94 = 12,437.16 : x
  2. Step 2: Convert to fraction form
    42,019.80/63,032.94 = 12,437.16/x
  3. Step 3: Cross multiply
    42,019.80x = 63,032.94 × 12,437.16
  4. Step 4: Simplify right side
    42,019.80x = 783,950,760.05
  5. Step 5: Solve for x
    x = 783,950,760.05/42,019.80
  6. Step 6: Final answer
    x = 18,656.70

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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.