Home / 35,434.20-53,151.30-20,659.80

Finding the Fourth Proportional to 35,434.20, 53,151.30 and 20,659.80

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Solution

The fourth proportional to 35,434.20, 53,151.30 and 20,659.80 is: 30,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,434.20 : 53,151.30 = 20,659.80 : x
  2. Step 2: Convert to fraction form
    35,434.20/53,151.30 = 20,659.80/x
  3. Step 3: Cross multiply
    35,434.20x = 53,151.30 × 20,659.80
  4. Step 4: Simplify right side
    35,434.20x = 1,098,095,227.74
  5. Step 5: Solve for x
    x = 1,098,095,227.74/35,434.20
  6. Step 6: Final answer
    x = 30,989.70

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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.