Home / 28,045.76-38,702.52-15,470.51

Finding the Fourth Proportional to 28,045.76, 38,702.52 and 15,470.51

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Solution

The fourth proportional to 28,045.76, 38,702.52 and 15,470.51 is: 21,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.76 : 38,702.52 = 15,470.51 : x
  2. Step 2: Convert to fraction form
    28,045.76/38,702.52 = 15,470.51/x
  3. Step 3: Cross multiply
    28,045.76x = 38,702.52 × 15,470.51
  4. Step 4: Simplify right side
    28,045.76x = 598,747,529.17
  5. Step 5: Solve for x
    x = 598,747,529.17/28,045.76
  6. Step 6: Final answer
    x = 21,348.95

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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.