Home / 28,296.86-42,463.11-15,825.05

Finding the Fourth Proportional to 28,296.86, 42,463.11 and 15,825.05

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Solution

The fourth proportional to 28,296.86, 42,463.11 and 15,825.05 is: 23,747.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.86 : 42,463.11 = 15,825.05 : x
  2. Step 2: Convert to fraction form
    28,296.86/42,463.11 = 15,825.05/x
  3. Step 3: Cross multiply
    28,296.86x = 42,463.11 × 15,825.05
  4. Step 4: Simplify right side
    28,296.86x = 671,980,838.91
  5. Step 5: Solve for x
    x = 671,980,838.91/28,296.86
  6. Step 6: Final answer
    x = 23,747.54

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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.