Home / 23,158.68-31,955.35-13,470.28

Finding the Fourth Proportional to 23,158.68, 31,955.35 and 13,470.28

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Solution

The fourth proportional to 23,158.68, 31,955.35 and 13,470.28 is: 18,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,158.68 : 31,955.35 = 13,470.28 : x
  2. Step 2: Convert to fraction form
    23,158.68/31,955.35 = 13,470.28/x
  3. Step 3: Cross multiply
    23,158.68x = 31,955.35 × 13,470.28
  4. Step 4: Simplify right side
    23,158.68x = 430,447,558.21
  5. Step 5: Solve for x
    x = 430,447,558.21/23,158.68
  6. Step 6: Final answer
    x = 18,586.88

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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.