Home / 22,069.28-30,458.40-12,510.72

Finding the Fourth Proportional to 22,069.28, 30,458.40 and 12,510.72

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Solution

The fourth proportional to 22,069.28, 30,458.40 and 12,510.72 is: 17,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,069.28 : 30,458.40 = 12,510.72 : x
  2. Step 2: Convert to fraction form
    22,069.28/30,458.40 = 12,510.72/x
  3. Step 3: Cross multiply
    22,069.28x = 30,458.40 × 12,510.72
  4. Step 4: Simplify right side
    22,069.28x = 381,056,572.69
  5. Step 5: Solve for x
    x = 381,056,572.69/22,069.28
  6. Step 6: Final answer
    x = 17,266.38

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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.