Home / 31,280.14-43,164.92-17,130.25

Finding the Fourth Proportional to 31,280.14, 43,164.92 and 17,130.25

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Solution

The fourth proportional to 31,280.14, 43,164.92 and 17,130.25 is: 23,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.14 : 43,164.92 = 17,130.25 : x
  2. Step 2: Convert to fraction form
    31,280.14/43,164.92 = 17,130.25/x
  3. Step 3: Cross multiply
    31,280.14x = 43,164.92 × 17,130.25
  4. Step 4: Simplify right side
    31,280.14x = 739,425,569.35
  5. Step 5: Solve for x
    x = 739,425,569.35/31,280.14
  6. Step 6: Final answer
    x = 23,638.82

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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.