Home / 28,424.88-39,140.28-22,437.36

Finding the Fourth Proportional to 28,424.88, 39,140.28 and 22,437.36

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Solution

The fourth proportional to 28,424.88, 39,140.28 and 22,437.36 is: 30,895.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.88 : 39,140.28 = 22,437.36 : x
  2. Step 2: Convert to fraction form
    28,424.88/39,140.28 = 22,437.36/x
  3. Step 3: Cross multiply
    28,424.88x = 39,140.28 × 22,437.36
  4. Step 4: Simplify right side
    28,424.88x = 878,204,552.86
  5. Step 5: Solve for x
    x = 878,204,552.86/28,424.88
  6. Step 6: Final answer
    x = 30,895.63

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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.