Home / 42,507.47-63,763.43-14,428.41

Finding the Fourth Proportional to 42,507.47, 63,763.43 and 14,428.41

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Solution

The fourth proportional to 42,507.47, 63,763.43 and 14,428.41 is: 21,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,507.47 : 63,763.43 = 14,428.41 : x
  2. Step 2: Convert to fraction form
    42,507.47/63,763.43 = 14,428.41/x
  3. Step 3: Cross multiply
    42,507.47x = 63,763.43 × 14,428.41
  4. Step 4: Simplify right side
    42,507.47x = 920,004,838.90
  5. Step 5: Solve for x
    x = 920,004,838.90/42,507.47
  6. Step 6: Final answer
    x = 21,643.37

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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.