Home / 42,431.40-63,656.28-16,136.64

Finding the Fourth Proportional to 42,431.40, 63,656.28 and 16,136.64

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Solution

The fourth proportional to 42,431.40, 63,656.28 and 16,136.64 is: 24,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,431.40 : 63,656.28 = 16,136.64 : x
  2. Step 2: Convert to fraction form
    42,431.40/63,656.28 = 16,136.64/x
  3. Step 3: Cross multiply
    42,431.40x = 63,656.28 × 16,136.64
  4. Step 4: Simplify right side
    42,431.40x = 1,027,198,474.10
  5. Step 5: Solve for x
    x = 1,027,198,474.10/42,431.40
  6. Step 6: Final answer
    x = 24,208.45

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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.