Home / 27,740.64-38,276.10-15,800.70

Finding the Fourth Proportional to 27,740.64, 38,276.10 and 15,800.70

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Solution

The fourth proportional to 27,740.64, 38,276.10 and 15,800.70 is: 21,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,740.64 : 38,276.10 = 15,800.70 : x
  2. Step 2: Convert to fraction form
    27,740.64/38,276.10 = 15,800.70/x
  3. Step 3: Cross multiply
    27,740.64x = 38,276.10 × 15,800.70
  4. Step 4: Simplify right side
    27,740.64x = 604,789,173.27
  5. Step 5: Solve for x
    x = 604,789,173.27/27,740.64
  6. Step 6: Final answer
    x = 21,801.56

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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.