Home / 15,526.40-23,170.31-13,865.60

Finding the Fourth Proportional to 15,526.40, 23,170.31 and 13,865.60

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Solution

The fourth proportional to 15,526.40, 23,170.31 and 13,865.60 is: 20,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.40 : 23,170.31 = 13,865.60 : x
  2. Step 2: Convert to fraction form
    15,526.40/23,170.31 = 13,865.60/x
  3. Step 3: Cross multiply
    15,526.40x = 23,170.31 × 13,865.60
  4. Step 4: Simplify right side
    15,526.40x = 321,270,117.15
  5. Step 5: Solve for x
    x = 321,270,117.15/15,526.40
  6. Step 6: Final answer
    x = 20,691.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.