Home / 27,800.60-38,363.34-15,865.04

Finding the Fourth Proportional to 27,800.60, 38,363.34 and 15,865.04

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Solution

The fourth proportional to 27,800.60, 38,363.34 and 15,865.04 is: 21,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,800.60 : 38,363.34 = 15,865.04 : x
  2. Step 2: Convert to fraction form
    27,800.60/38,363.34 = 15,865.04/x
  3. Step 3: Cross multiply
    27,800.60x = 38,363.34 × 15,865.04
  4. Step 4: Simplify right side
    27,800.60x = 608,635,923.63
  5. Step 5: Solve for x
    x = 608,635,923.63/27,800.60
  6. Step 6: Final answer
    x = 21,892.91

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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.