Home / 55,397.23-83,139.45-20,346.91

Finding the Fourth Proportional to 55,397.23, 83,139.45 and 20,346.91

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Solution

The fourth proportional to 55,397.23, 83,139.45 and 20,346.91 is: 30,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,397.23 : 83,139.45 = 20,346.91 : x
  2. Step 2: Convert to fraction form
    55,397.23/83,139.45 = 20,346.91/x
  3. Step 3: Cross multiply
    55,397.23x = 83,139.45 × 20,346.91
  4. Step 4: Simplify right side
    55,397.23x = 1,691,630,906.60
  5. Step 5: Solve for x
    x = 1,691,630,906.60/55,397.23
  6. Step 6: Final answer
    x = 30,536.38

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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.