Home / 40,276.81-55,589.28-23,278.70

Finding the Fourth Proportional to 40,276.81, 55,589.28 and 23,278.70

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Solution

The fourth proportional to 40,276.81, 55,589.28 and 23,278.70 is: 32,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,276.81 : 55,589.28 = 23,278.70 : x
  2. Step 2: Convert to fraction form
    40,276.81/55,589.28 = 23,278.70/x
  3. Step 3: Cross multiply
    40,276.81x = 55,589.28 × 23,278.70
  4. Step 4: Simplify right side
    40,276.81x = 1,294,046,224.01
  5. Step 5: Solve for x
    x = 1,294,046,224.01/40,276.81
  6. Step 6: Final answer
    x = 32,128.82

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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.