Home / 19,228.32-28,812.24-10,471.68

Finding the Fourth Proportional to 19,228.32, 28,812.24 and 10,471.68

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Solution

The fourth proportional to 19,228.32, 28,812.24 and 10,471.68 is: 15,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.32 : 28,812.24 = 10,471.68 : x
  2. Step 2: Convert to fraction form
    19,228.32/28,812.24 = 10,471.68/x
  3. Step 3: Cross multiply
    19,228.32x = 28,812.24 × 10,471.68
  4. Step 4: Simplify right side
    19,228.32x = 301,712,557.36
  5. Step 5: Solve for x
    x = 301,712,557.36/19,228.32
  6. Step 6: Final answer
    x = 15,691.05

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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.