Home / 20,527.23-28,328.19-11,575.02

Finding the Fourth Proportional to 20,527.23, 28,328.19 and 11,575.02

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Solution

The fourth proportional to 20,527.23, 28,328.19 and 11,575.02 is: 15,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.23 : 28,328.19 = 11,575.02 : x
  2. Step 2: Convert to fraction form
    20,527.23/28,328.19 = 11,575.02/x
  3. Step 3: Cross multiply
    20,527.23x = 28,328.19 × 11,575.02
  4. Step 4: Simplify right side
    20,527.23x = 327,899,365.81
  5. Step 5: Solve for x
    x = 327,899,365.81/20,527.23
  6. Step 6: Final answer
    x = 15,973.87

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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.