Home / 20,316.39-28,010.49-16,913.16

Finding the Fourth Proportional to 20,316.39, 28,010.49 and 16,913.16

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Solution

The fourth proportional to 20,316.39, 28,010.49 and 16,913.16 is: 23,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.39 : 28,010.49 = 16,913.16 : x
  2. Step 2: Convert to fraction form
    20,316.39/28,010.49 = 16,913.16/x
  3. Step 3: Cross multiply
    20,316.39x = 28,010.49 × 16,913.16
  4. Step 4: Simplify right side
    20,316.39x = 473,745,899.05
  5. Step 5: Solve for x
    x = 473,745,899.05/20,316.39
  6. Step 6: Final answer
    x = 23,318.41

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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.