Home / 42,008.40-63,026.01-12,426.39

Finding the Fourth Proportional to 42,008.40, 63,026.01 and 12,426.39

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Solution

The fourth proportional to 42,008.40, 63,026.01 and 12,426.39 is: 18,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.40 : 63,026.01 = 12,426.39 : x
  2. Step 2: Convert to fraction form
    42,008.40/63,026.01 = 12,426.39/x
  3. Step 3: Cross multiply
    42,008.40x = 63,026.01 × 12,426.39
  4. Step 4: Simplify right side
    42,008.40x = 783,185,780.40
  5. Step 5: Solve for x
    x = 783,185,780.40/42,008.40
  6. Step 6: Final answer
    x = 18,643.55

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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.