Home / 20,723.49-28,598.81-12,344.85

Finding the Fourth Proportional to 20,723.49, 28,598.81 and 12,344.85

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Solution

The fourth proportional to 20,723.49, 28,598.81 and 12,344.85 is: 17,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.49 : 28,598.81 = 12,344.85 : x
  2. Step 2: Convert to fraction form
    20,723.49/28,598.81 = 12,344.85/x
  3. Step 3: Cross multiply
    20,723.49x = 28,598.81 × 12,344.85
  4. Step 4: Simplify right side
    20,723.49x = 353,047,957.90
  5. Step 5: Solve for x
    x = 353,047,957.90/20,723.49
  6. Step 6: Final answer
    x = 17,036.12

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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.