Home / 28,190.23-42,290.10-9,472.04

Finding the Fourth Proportional to 28,190.23, 42,290.10 and 9,472.04

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Solution

The fourth proportional to 28,190.23, 42,290.10 and 9,472.04 is: 14,209.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.23 : 42,290.10 = 9,472.04 : x
  2. Step 2: Convert to fraction form
    28,190.23/42,290.10 = 9,472.04/x
  3. Step 3: Cross multiply
    28,190.23x = 42,290.10 × 9,472.04
  4. Step 4: Simplify right side
    28,190.23x = 400,573,465.94
  5. Step 5: Solve for x
    x = 400,573,465.94/28,190.23
  6. Step 6: Final answer
    x = 14,209.66

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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.