Home / 28,891.28-43,301.47-16,421.75

Finding the Fourth Proportional to 28,891.28, 43,301.47 and 16,421.75

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Solution

The fourth proportional to 28,891.28, 43,301.47 and 16,421.75 is: 24,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.28 : 43,301.47 = 16,421.75 : x
  2. Step 2: Convert to fraction form
    28,891.28/43,301.47 = 16,421.75/x
  3. Step 3: Cross multiply
    28,891.28x = 43,301.47 × 16,421.75
  4. Step 4: Simplify right side
    28,891.28x = 711,085,914.97
  5. Step 5: Solve for x
    x = 711,085,914.97/28,891.28
  6. Step 6: Final answer
    x = 24,612.48

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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.