Home / 31,602.72-47,643.96-29,909.28

Finding the Fourth Proportional to 31,602.72, 47,643.96 and 29,909.28

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Solution

The fourth proportional to 31,602.72, 47,643.96 and 29,909.28 is: 45,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,602.72 : 47,643.96 = 29,909.28 : x
  2. Step 2: Convert to fraction form
    31,602.72/47,643.96 = 29,909.28/x
  3. Step 3: Cross multiply
    31,602.72x = 47,643.96 × 29,909.28
  4. Step 4: Simplify right side
    31,602.72x = 1,424,996,539.95
  5. Step 5: Solve for x
    x = 1,424,996,539.95/31,602.72
  6. Step 6: Final answer
    x = 45,090.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.