Home / 28,117.49-42,162.32-9,391.10

Finding the Fourth Proportional to 28,117.49, 42,162.32 and 9,391.10

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Solution

The fourth proportional to 28,117.49, 42,162.32 and 9,391.10 is: 14,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.49 : 42,162.32 = 9,391.10 : x
  2. Step 2: Convert to fraction form
    28,117.49/42,162.32 = 9,391.10/x
  3. Step 3: Cross multiply
    28,117.49x = 42,162.32 × 9,391.10
  4. Step 4: Simplify right side
    28,117.49x = 395,950,305.58
  5. Step 5: Solve for x
    x = 395,950,305.58/28,117.49
  6. Step 6: Final answer
    x = 14,082.00

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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.