Home / 20,424.18-30,639.52-7,101.24

Finding the Fourth Proportional to 20,424.18, 30,639.52 and 7,101.24

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Solution

The fourth proportional to 20,424.18, 30,639.52 and 7,101.24 is: 10,652.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.18 : 30,639.52 = 7,101.24 : x
  2. Step 2: Convert to fraction form
    20,424.18/30,639.52 = 7,101.24/x
  3. Step 3: Cross multiply
    20,424.18x = 30,639.52 × 7,101.24
  4. Step 4: Simplify right side
    20,424.18x = 217,578,585.00
  5. Step 5: Solve for x
    x = 217,578,585.00/20,424.18
  6. Step 6: Final answer
    x = 10,652.99

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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.