Home / 23,015.40-31,753.86-13,586.28

Finding the Fourth Proportional to 23,015.40, 31,753.86 and 13,586.28

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Solution

The fourth proportional to 23,015.40, 31,753.86 and 13,586.28 is: 18,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,015.40 : 31,753.86 = 13,586.28 : x
  2. Step 2: Convert to fraction form
    23,015.40/31,753.86 = 13,586.28/x
  3. Step 3: Cross multiply
    23,015.40x = 31,753.86 × 13,586.28
  4. Step 4: Simplify right side
    23,015.40x = 431,416,833.04
  5. Step 5: Solve for x
    x = 431,416,833.04/23,015.40
  6. Step 6: Final answer
    x = 18,744.70

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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.