Home / 42,447.12-63,669-14,369.28

Finding the Fourth Proportional to 42,447.12, 63,669 and 14,369.28

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Solution

The fourth proportional to 42,447.12, 63,669 and 14,369.28 is: 21,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,447.12 : 63,669 = 14,369.28 : x
  2. Step 2: Convert to fraction form
    42,447.12/63,669 = 14,369.28/x
  3. Step 3: Cross multiply
    42,447.12x = 63,669 × 14,369.28
  4. Step 4: Simplify right side
    42,447.12x = 914,877,688.32
  5. Step 5: Solve for x
    x = 914,877,688.32/42,447.12
  6. Step 6: Final answer
    x = 21,553.35

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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.