Home / 22,661.16-31,265.92-13,702.20

Finding the Fourth Proportional to 22,661.16, 31,265.92 and 13,702.20

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Solution

The fourth proportional to 22,661.16, 31,265.92 and 13,702.20 is: 18,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.16 : 31,265.92 = 13,702.20 : x
  2. Step 2: Convert to fraction form
    22,661.16/31,265.92 = 13,702.20/x
  3. Step 3: Cross multiply
    22,661.16x = 31,265.92 × 13,702.20
  4. Step 4: Simplify right side
    22,661.16x = 428,411,889.02
  5. Step 5: Solve for x
    x = 428,411,889.02/22,661.16
  6. Step 6: Final answer
    x = 18,905.12

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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.