Home / 28,115.18-38,800.59-15,541.10

Finding the Fourth Proportional to 28,115.18, 38,800.59 and 15,541.10

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Solution

The fourth proportional to 28,115.18, 38,800.59 and 15,541.10 is: 21,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.18 : 38,800.59 = 15,541.10 : x
  2. Step 2: Convert to fraction form
    28,115.18/38,800.59 = 15,541.10/x
  3. Step 3: Cross multiply
    28,115.18x = 38,800.59 × 15,541.10
  4. Step 4: Simplify right side
    28,115.18x = 603,003,849.25
  5. Step 5: Solve for x
    x = 603,003,849.25/28,115.18
  6. Step 6: Final answer
    x = 21,447.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.