Home / 42,543.67-63,813.18-12,959.03

Finding the Fourth Proportional to 42,543.67, 63,813.18 and 12,959.03

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Solution

The fourth proportional to 42,543.67, 63,813.18 and 12,959.03 is: 19,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,543.67 : 63,813.18 = 12,959.03 : x
  2. Step 2: Convert to fraction form
    42,543.67/63,813.18 = 12,959.03/x
  3. Step 3: Cross multiply
    42,543.67x = 63,813.18 × 12,959.03
  4. Step 4: Simplify right side
    42,543.67x = 826,956,914.02
  5. Step 5: Solve for x
    x = 826,956,914.02/42,543.67
  6. Step 6: Final answer
    x = 19,437.84

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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.