Home / 30,351.88-45,534.18-10,631.08

Finding the Fourth Proportional to 30,351.88, 45,534.18 and 10,631.08

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Solution

The fourth proportional to 30,351.88, 45,534.18 and 10,631.08 is: 15,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.88 : 45,534.18 = 10,631.08 : x
  2. Step 2: Convert to fraction form
    30,351.88/45,534.18 = 10,631.08/x
  3. Step 3: Cross multiply
    30,351.88x = 45,534.18 × 10,631.08
  4. Step 4: Simplify right side
    30,351.88x = 484,077,510.31
  5. Step 5: Solve for x
    x = 484,077,510.31/30,351.88
  6. Step 6: Final answer
    x = 15,948.85

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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.