Home / 28,737.66-39,653.14-15,989.18

Finding the Fourth Proportional to 28,737.66, 39,653.14 and 15,989.18

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Solution

The fourth proportional to 28,737.66, 39,653.14 and 15,989.18 is: 22,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.66 : 39,653.14 = 15,989.18 : x
  2. Step 2: Convert to fraction form
    28,737.66/39,653.14 = 15,989.18/x
  3. Step 3: Cross multiply
    28,737.66x = 39,653.14 × 15,989.18
  4. Step 4: Simplify right side
    28,737.66x = 634,021,193.03
  5. Step 5: Solve for x
    x = 634,021,193.03/28,737.66
  6. Step 6: Final answer
    x = 22,062.38

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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.