Home / 22,294.29-30,743.16-15,577.47

Finding the Fourth Proportional to 22,294.29, 30,743.16 and 15,577.47

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Solution

The fourth proportional to 22,294.29, 30,743.16 and 15,577.47 is: 21,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,294.29 : 30,743.16 = 15,577.47 : x
  2. Step 2: Convert to fraction form
    22,294.29/30,743.16 = 15,577.47/x
  3. Step 3: Cross multiply
    22,294.29x = 30,743.16 × 15,577.47
  4. Step 4: Simplify right side
    22,294.29x = 478,900,681.81
  5. Step 5: Solve for x
    x = 478,900,681.81/22,294.29
  6. Step 6: Final answer
    x = 21,480.86

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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.