Home / 21,248.52-29,341.62-13,304.28

Finding the Fourth Proportional to 21,248.52, 29,341.62 and 13,304.28

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Solution

The fourth proportional to 21,248.52, 29,341.62 and 13,304.28 is: 18,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.52 : 29,341.62 = 13,304.28 : x
  2. Step 2: Convert to fraction form
    21,248.52/29,341.62 = 13,304.28/x
  3. Step 3: Cross multiply
    21,248.52x = 29,341.62 × 13,304.28
  4. Step 4: Simplify right side
    21,248.52x = 390,369,128.13
  5. Step 5: Solve for x
    x = 390,369,128.13/21,248.52
  6. Step 6: Final answer
    x = 18,371.59

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1.5x scale

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.