Home / 28,376.70-39,158.79-15,801.18

Finding the Fourth Proportional to 28,376.70, 39,158.79 and 15,801.18

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Solution

The fourth proportional to 28,376.70, 39,158.79 and 15,801.18 is: 21,805.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.70 : 39,158.79 = 15,801.18 : x
  2. Step 2: Convert to fraction form
    28,376.70/39,158.79 = 15,801.18/x
  3. Step 3: Cross multiply
    28,376.70x = 39,158.79 × 15,801.18
  4. Step 4: Simplify right side
    28,376.70x = 618,755,089.37
  5. Step 5: Solve for x
    x = 618,755,089.37/28,376.70
  6. Step 6: Final answer
    x = 21,805.04

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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.