Home / 28,760.32-39,689.81-16,013.76

Finding the Fourth Proportional to 28,760.32, 39,689.81 and 16,013.76

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Solution

The fourth proportional to 28,760.32, 39,689.81 and 16,013.76 is: 22,099.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.32 : 39,689.81 = 16,013.76 : x
  2. Step 2: Convert to fraction form
    28,760.32/39,689.81 = 16,013.76/x
  3. Step 3: Cross multiply
    28,760.32x = 39,689.81 × 16,013.76
  4. Step 4: Simplify right side
    28,760.32x = 635,583,091.79
  5. Step 5: Solve for x
    x = 635,583,091.79/28,760.32
  6. Step 6: Final answer
    x = 22,099.31

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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.