Home / 34,309.28-51,463.92-18,718.40

Finding the Fourth Proportional to 34,309.28, 51,463.92 and 18,718.40

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Solution

The fourth proportional to 34,309.28, 51,463.92 and 18,718.40 is: 28,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,309.28 : 51,463.92 = 18,718.40 : x
  2. Step 2: Convert to fraction form
    34,309.28/51,463.92 = 18,718.40/x
  3. Step 3: Cross multiply
    34,309.28x = 51,463.92 × 18,718.40
  4. Step 4: Simplify right side
    34,309.28x = 963,322,240.13
  5. Step 5: Solve for x
    x = 963,322,240.13/34,309.28
  6. Step 6: Final answer
    x = 28,077.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.