Home / 27,154.48-40,657.80-20,560.72

Finding the Fourth Proportional to 27,154.48, 40,657.80 and 20,560.72

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Solution

The fourth proportional to 27,154.48, 40,657.80 and 20,560.72 is: 30,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,154.48 : 40,657.80 = 20,560.72 : x
  2. Step 2: Convert to fraction form
    27,154.48/40,657.80 = 20,560.72/x
  3. Step 3: Cross multiply
    27,154.48x = 40,657.80 × 20,560.72
  4. Step 4: Simplify right side
    27,154.48x = 835,953,641.62
  5. Step 5: Solve for x
    x = 835,953,641.62/27,154.48
  6. Step 6: Final answer
    x = 30,785.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.