Home / 42,429.12-63,643.83-14,349.40

Finding the Fourth Proportional to 42,429.12, 63,643.83 and 14,349.40

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Solution

The fourth proportional to 42,429.12, 63,643.83 and 14,349.40 is: 21,524.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,429.12 : 63,643.83 = 14,349.40 : x
  2. Step 2: Convert to fraction form
    42,429.12/63,643.83 = 14,349.40/x
  3. Step 3: Cross multiply
    42,429.12x = 63,643.83 × 14,349.40
  4. Step 4: Simplify right side
    42,429.12x = 913,250,919.28
  5. Step 5: Solve for x
    x = 913,250,919.28/42,429.12
  6. Step 6: Final answer
    x = 21,524.16

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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.