Home / 28,360.80-42,541.18-11,702.51

Finding the Fourth Proportional to 28,360.80, 42,541.18 and 11,702.51

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Solution

The fourth proportional to 28,360.80, 42,541.18 and 11,702.51 is: 17,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.80 : 42,541.18 = 11,702.51 : x
  2. Step 2: Convert to fraction form
    28,360.80/42,541.18 = 11,702.51/x
  3. Step 3: Cross multiply
    28,360.80x = 42,541.18 × 11,702.51
  4. Step 4: Simplify right side
    28,360.80x = 497,838,584.36
  5. Step 5: Solve for x
    x = 497,838,584.36/28,360.80
  6. Step 6: Final answer
    x = 17,553.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.