Home / 28,785.20-39,723.54-16,210.04

Finding the Fourth Proportional to 28,785.20, 39,723.54 and 16,210.04

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Solution

The fourth proportional to 28,785.20, 39,723.54 and 16,210.04 is: 22,369.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.20 : 39,723.54 = 16,210.04 : x
  2. Step 2: Convert to fraction form
    28,785.20/39,723.54 = 16,210.04/x
  3. Step 3: Cross multiply
    28,785.20x = 39,723.54 × 16,210.04
  4. Step 4: Simplify right side
    28,785.20x = 643,920,172.34
  5. Step 5: Solve for x
    x = 643,920,172.34/28,785.20
  6. Step 6: Final answer
    x = 22,369.83

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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.