Home / 20,269.16-30,270.66-17,275.70

Finding the Fourth Proportional to 20,269.16, 30,270.66 and 17,275.70

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Solution

The fourth proportional to 20,269.16, 30,270.66 and 17,275.70 is: 25,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.16 : 30,270.66 = 17,275.70 : x
  2. Step 2: Convert to fraction form
    20,269.16/30,270.66 = 17,275.70/x
  3. Step 3: Cross multiply
    20,269.16x = 30,270.66 × 17,275.70
  4. Step 4: Simplify right side
    20,269.16x = 522,946,797.77
  5. Step 5: Solve for x
    x = 522,946,797.77/20,269.16
  6. Step 6: Final answer
    x = 25,800.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.