Home / 20,294.10-30,445.34-7,155.63

Finding the Fourth Proportional to 20,294.10, 30,445.34 and 7,155.63

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Solution

The fourth proportional to 20,294.10, 30,445.34 and 7,155.63 is: 10,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.10 : 30,445.34 = 7,155.63 : x
  2. Step 2: Convert to fraction form
    20,294.10/30,445.34 = 7,155.63/x
  3. Step 3: Cross multiply
    20,294.10x = 30,445.34 × 7,155.63
  4. Step 4: Simplify right side
    20,294.10x = 217,855,552.49
  5. Step 5: Solve for x
    x = 217,855,552.49/20,294.10
  6. Step 6: Final answer
    x = 10,734.92

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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.