Home / 42,424.39-63,539.70-20,253.34

Finding the Fourth Proportional to 42,424.39, 63,539.70 and 20,253.34

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Solution

The fourth proportional to 42,424.39, 63,539.70 and 20,253.34 is: 30,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,424.39 : 63,539.70 = 20,253.34 : x
  2. Step 2: Convert to fraction form
    42,424.39/63,539.70 = 20,253.34/x
  3. Step 3: Cross multiply
    42,424.39x = 63,539.70 × 20,253.34
  4. Step 4: Simplify right side
    42,424.39x = 1,286,891,147.60
  5. Step 5: Solve for x
    x = 1,286,891,147.60/42,424.39
  6. Step 6: Final answer
    x = 30,333.76

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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.