Home / 42,553.18-63,836.70-12,570.46

Finding the Fourth Proportional to 42,553.18, 63,836.70 and 12,570.46

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Solution

The fourth proportional to 42,553.18, 63,836.70 and 12,570.46 is: 18,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,553.18 : 63,836.70 = 12,570.46 : x
  2. Step 2: Convert to fraction form
    42,553.18/63,836.70 = 12,570.46/x
  3. Step 3: Cross multiply
    42,553.18x = 63,836.70 × 12,570.46
  4. Step 4: Simplify right side
    42,553.18x = 802,456,683.88
  5. Step 5: Solve for x
    x = 802,456,683.88/42,553.18
  6. Step 6: Final answer
    x = 18,857.74

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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.