Home / 27,702.07-38,228.90-15,126.82

Finding the Fourth Proportional to 27,702.07, 38,228.90 and 15,126.82

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Solution

The fourth proportional to 27,702.07, 38,228.90 and 15,126.82 is: 20,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,702.07 : 38,228.90 = 15,126.82 : x
  2. Step 2: Convert to fraction form
    27,702.07/38,228.90 = 15,126.82/x
  3. Step 3: Cross multiply
    27,702.07x = 38,228.90 × 15,126.82
  4. Step 4: Simplify right side
    27,702.07x = 578,281,517.89
  5. Step 5: Solve for x
    x = 578,281,517.89/27,702.07
  6. Step 6: Final answer
    x = 20,875.03

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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.