Home / 42,380.63-63,580.05-14,301.38

Finding the Fourth Proportional to 42,380.63, 63,580.05 and 14,301.38

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Solution

The fourth proportional to 42,380.63, 63,580.05 and 14,301.38 is: 21,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,380.63 : 63,580.05 = 14,301.38 : x
  2. Step 2: Convert to fraction form
    42,380.63/63,580.05 = 14,301.38/x
  3. Step 3: Cross multiply
    42,380.63x = 63,580.05 × 14,301.38
  4. Step 4: Simplify right side
    42,380.63x = 909,282,455.47
  5. Step 5: Solve for x
    x = 909,282,455.47/42,380.63
  6. Step 6: Final answer
    x = 21,455.14

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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.