Home / 42,536.15-63,739.55-20,318.93

Finding the Fourth Proportional to 42,536.15, 63,739.55 and 20,318.93

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Solution

The fourth proportional to 42,536.15, 63,739.55 and 20,318.93 is: 30,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,536.15 : 63,739.55 = 20,318.93 : x
  2. Step 2: Convert to fraction form
    42,536.15/63,739.55 = 20,318.93/x
  3. Step 3: Cross multiply
    42,536.15x = 63,739.55 × 20,318.93
  4. Step 4: Simplify right side
    42,536.15x = 1,295,119,034.39
  5. Step 5: Solve for x
    x = 1,295,119,034.39/42,536.15
  6. Step 6: Final answer
    x = 30,447.49

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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.