Home / 28,869.04-39,839.07-16,121.47

Finding the Fourth Proportional to 28,869.04, 39,839.07 and 16,121.47

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Solution

The fourth proportional to 28,869.04, 39,839.07 and 16,121.47 is: 22,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.04 : 39,839.07 = 16,121.47 : x
  2. Step 2: Convert to fraction form
    28,869.04/39,839.07 = 16,121.47/x
  3. Step 3: Cross multiply
    28,869.04x = 39,839.07 × 16,121.47
  4. Step 4: Simplify right side
    28,869.04x = 642,264,371.83
  5. Step 5: Solve for x
    x = 642,264,371.83/28,869.04
  6. Step 6: Final answer
    x = 22,247.51

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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.