Home / 28,968.06-39,979.28-17,644.20

Finding the Fourth Proportional to 28,968.06, 39,979.28 and 17,644.20

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Solution

The fourth proportional to 28,968.06, 39,979.28 and 17,644.20 is: 24,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.06 : 39,979.28 = 17,644.20 : x
  2. Step 2: Convert to fraction form
    28,968.06/39,979.28 = 17,644.20/x
  3. Step 3: Cross multiply
    28,968.06x = 39,979.28 × 17,644.20
  4. Step 4: Simplify right side
    28,968.06x = 705,402,323.96
  5. Step 5: Solve for x
    x = 705,402,323.96/28,968.06
  6. Step 6: Final answer
    x = 24,351.04

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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.