Home / 27,702.24-38,174.16-19,730.40

Finding the Fourth Proportional to 27,702.24, 38,174.16 and 19,730.40

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Solution

The fourth proportional to 27,702.24, 38,174.16 and 19,730.40 is: 27,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,702.24 : 38,174.16 = 19,730.40 : x
  2. Step 2: Convert to fraction form
    27,702.24/38,174.16 = 19,730.40/x
  3. Step 3: Cross multiply
    27,702.24x = 38,174.16 × 19,730.40
  4. Step 4: Simplify right side
    27,702.24x = 753,191,446.46
  5. Step 5: Solve for x
    x = 753,191,446.46/27,702.24
  6. Step 6: Final answer
    x = 27,188.83

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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.