Home / 27,808.76-38,376.20-15,062.10

Finding the Fourth Proportional to 27,808.76, 38,376.20 and 15,062.10

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Solution

The fourth proportional to 27,808.76, 38,376.20 and 15,062.10 is: 20,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.76 : 38,376.20 = 15,062.10 : x
  2. Step 2: Convert to fraction form
    27,808.76/38,376.20 = 15,062.10/x
  3. Step 3: Cross multiply
    27,808.76x = 38,376.20 × 15,062.10
  4. Step 4: Simplify right side
    27,808.76x = 578,026,162.02
  5. Step 5: Solve for x
    x = 578,026,162.02/27,808.76
  6. Step 6: Final answer
    x = 20,785.76

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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.