Home / 42,543.60-63,817.84-12,962.40

Finding the Fourth Proportional to 42,543.60, 63,817.84 and 12,962.40

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Solution

The fourth proportional to 42,543.60, 63,817.84 and 12,962.40 is: 19,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,543.60 : 63,817.84 = 12,962.40 : x
  2. Step 2: Convert to fraction form
    42,543.60/63,817.84 = 12,962.40/x
  3. Step 3: Cross multiply
    42,543.60x = 63,817.84 × 12,962.40
  4. Step 4: Simplify right side
    42,543.60x = 827,232,369.22
  5. Step 5: Solve for x
    x = 827,232,369.22/42,543.60
  6. Step 6: Final answer
    x = 19,444.34

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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.