Home / 28,987.28-43,488.24-8,210.96

Finding the Fourth Proportional to 28,987.28, 43,488.24 and 8,210.96

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Solution

The fourth proportional to 28,987.28, 43,488.24 and 8,210.96 is: 12,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.28 : 43,488.24 = 8,210.96 : x
  2. Step 2: Convert to fraction form
    28,987.28/43,488.24 = 8,210.96/x
  3. Step 3: Cross multiply
    28,987.28x = 43,488.24 × 8,210.96
  4. Step 4: Simplify right side
    28,987.28x = 357,080,199.11
  5. Step 5: Solve for x
    x = 357,080,199.11/28,987.28
  6. Step 6: Final answer
    x = 12,318.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.