Home / 20,864.60-31,096.16-20,532.45

Finding the Fourth Proportional to 20,864.60, 31,096.16 and 20,532.45

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Solution

The fourth proportional to 20,864.60, 31,096.16 and 20,532.45 is: 30,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864.60 : 31,096.16 = 20,532.45 : x
  2. Step 2: Convert to fraction form
    20,864.60/31,096.16 = 20,532.45/x
  3. Step 3: Cross multiply
    20,864.60x = 31,096.16 × 20,532.45
  4. Step 4: Simplify right side
    20,864.60x = 638,480,350.39
  5. Step 5: Solve for x
    x = 638,480,350.39/20,864.60
  6. Step 6: Final answer
    x = 30,601.13

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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.