Home / 20,527.24-28,327.56-11,095.78

Finding the Fourth Proportional to 20,527.24, 28,327.56 and 11,095.78

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Solution

The fourth proportional to 20,527.24, 28,327.56 and 11,095.78 is: 15,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.24 : 28,327.56 = 11,095.78 : x
  2. Step 2: Convert to fraction form
    20,527.24/28,327.56 = 11,095.78/x
  3. Step 3: Cross multiply
    20,527.24x = 28,327.56 × 11,095.78
  4. Step 4: Simplify right side
    20,527.24x = 314,316,373.70
  5. Step 5: Solve for x
    x = 314,316,373.70/20,527.24
  6. Step 6: Final answer
    x = 15,312.16

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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.