Home / 27,726.08-38,265.60-15,787.04

Finding the Fourth Proportional to 27,726.08, 38,265.60 and 15,787.04

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Solution

The fourth proportional to 27,726.08, 38,265.60 and 15,787.04 is: 21,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,726.08 : 38,265.60 = 15,787.04 : x
  2. Step 2: Convert to fraction form
    27,726.08/38,265.60 = 15,787.04/x
  3. Step 3: Cross multiply
    27,726.08x = 38,265.60 × 15,787.04
  4. Step 4: Simplify right side
    27,726.08x = 604,100,557.82
  5. Step 5: Solve for x
    x = 604,100,557.82/27,726.08
  6. Step 6: Final answer
    x = 21,788.17

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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.