Home / 29,344.28-40,461-21,390.08

Finding the Fourth Proportional to 29,344.28, 40,461 and 21,390.08

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Solution

The fourth proportional to 29,344.28, 40,461 and 21,390.08 is: 29,493.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,344.28 : 40,461 = 21,390.08 : x
  2. Step 2: Convert to fraction form
    29,344.28/40,461 = 21,390.08/x
  3. Step 3: Cross multiply
    29,344.28x = 40,461 × 21,390.08
  4. Step 4: Simplify right side
    29,344.28x = 865,464,026.88
  5. Step 5: Solve for x
    x = 865,464,026.88/29,344.28
  6. Step 6: Final answer
    x = 29,493.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.