Home / 22,580.22-31,158.26-12,508.40

Finding the Fourth Proportional to 22,580.22, 31,158.26 and 12,508.40

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Solution

The fourth proportional to 22,580.22, 31,158.26 and 12,508.40 is: 17,260.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580.22 : 31,158.26 = 12,508.40 : x
  2. Step 2: Convert to fraction form
    22,580.22/31,158.26 = 12,508.40/x
  3. Step 3: Cross multiply
    22,580.22x = 31,158.26 × 12,508.40
  4. Step 4: Simplify right side
    22,580.22x = 389,739,979.38
  5. Step 5: Solve for x
    x = 389,739,979.38/22,580.22
  6. Step 6: Final answer
    x = 17,260.24

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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.