Home / 28,780.80-39,717.36-16,034.12

Finding the Fourth Proportional to 28,780.80, 39,717.36 and 16,034.12

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Solution

The fourth proportional to 28,780.80, 39,717.36 and 16,034.12 is: 22,127.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.80 : 39,717.36 = 16,034.12 : x
  2. Step 2: Convert to fraction form
    28,780.80/39,717.36 = 16,034.12/x
  3. Step 3: Cross multiply
    28,780.80x = 39,717.36 × 16,034.12
  4. Step 4: Simplify right side
    28,780.80x = 636,832,916.32
  5. Step 5: Solve for x
    x = 636,832,916.32/28,780.80
  6. Step 6: Final answer
    x = 22,127.01

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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.