Home / 20,526.57-28,316.66-12,969.27

Finding the Fourth Proportional to 20,526.57, 28,316.66 and 12,969.27

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Solution

The fourth proportional to 20,526.57, 28,316.66 and 12,969.27 is: 17,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.57 : 28,316.66 = 12,969.27 : x
  2. Step 2: Convert to fraction form
    20,526.57/28,316.66 = 12,969.27/x
  3. Step 3: Cross multiply
    20,526.57x = 28,316.66 × 12,969.27
  4. Step 4: Simplify right side
    20,526.57x = 367,246,344.19
  5. Step 5: Solve for x
    x = 367,246,344.19/20,526.57
  6. Step 6: Final answer
    x = 17,891.27

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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.