Home / 28,869.77-39,839.51-16,122.60

Finding the Fourth Proportional to 28,869.77, 39,839.51 and 16,122.60

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Solution

The fourth proportional to 28,869.77, 39,839.51 and 16,122.60 is: 22,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.77 : 39,839.51 = 16,122.60 : x
  2. Step 2: Convert to fraction form
    28,869.77/39,839.51 = 16,122.60/x
  3. Step 3: Cross multiply
    28,869.77x = 39,839.51 × 16,122.60
  4. Step 4: Simplify right side
    28,869.77x = 642,316,483.93
  5. Step 5: Solve for x
    x = 642,316,483.93/28,869.77
  6. Step 6: Final answer
    x = 22,248.76

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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.