Home / 42,445.70-63,595.65-20,211.20

Finding the Fourth Proportional to 42,445.70, 63,595.65 and 20,211.20

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Solution

The fourth proportional to 42,445.70, 63,595.65 and 20,211.20 is: 30,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.70 : 63,595.65 = 20,211.20 : x
  2. Step 2: Convert to fraction form
    42,445.70/63,595.65 = 20,211.20/x
  3. Step 3: Cross multiply
    42,445.70x = 63,595.65 × 20,211.20
  4. Step 4: Simplify right side
    42,445.70x = 1,285,344,401.28
  5. Step 5: Solve for x
    x = 1,285,344,401.28/42,445.70
  6. Step 6: Final answer
    x = 30,282.09

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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.