Home / 28,173.50-38,879.70-15,598.52

Finding the Fourth Proportional to 28,173.50, 38,879.70 and 15,598.52

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Solution

The fourth proportional to 28,173.50, 38,879.70 and 15,598.52 is: 21,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.50 : 38,879.70 = 15,598.52 : x
  2. Step 2: Convert to fraction form
    28,173.50/38,879.70 = 15,598.52/x
  3. Step 3: Cross multiply
    28,173.50x = 38,879.70 × 15,598.52
  4. Step 4: Simplify right side
    28,173.50x = 606,465,778.04
  5. Step 5: Solve for x
    x = 606,465,778.04/28,173.50
  6. Step 6: Final answer
    x = 21,526.11

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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.