Home / 20,460.57-28,235.88-12,501.11

Finding the Fourth Proportional to 20,460.57, 28,235.88 and 12,501.11

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Solution

The fourth proportional to 20,460.57, 28,235.88 and 12,501.11 is: 17,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.57 : 28,235.88 = 12,501.11 : x
  2. Step 2: Convert to fraction form
    20,460.57/28,235.88 = 12,501.11/x
  3. Step 3: Cross multiply
    20,460.57x = 28,235.88 × 12,501.11
  4. Step 4: Simplify right side
    20,460.57x = 352,979,700.65
  5. Step 5: Solve for x
    x = 352,979,700.65/20,460.57
  6. Step 6: Final answer
    x = 17,251.70

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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.