Home / 28,168.04-38,871.90-15,592.79

Finding the Fourth Proportional to 28,168.04, 38,871.90 and 15,592.79

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Solution

The fourth proportional to 28,168.04, 38,871.90 and 15,592.79 is: 21,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.04 : 38,871.90 = 15,592.79 : x
  2. Step 2: Convert to fraction form
    28,168.04/38,871.90 = 15,592.79/x
  3. Step 3: Cross multiply
    28,168.04x = 38,871.90 × 15,592.79
  4. Step 4: Simplify right side
    28,168.04x = 606,121,252.13
  5. Step 5: Solve for x
    x = 606,121,252.13/28,168.04
  6. Step 6: Final answer
    x = 21,518.05

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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.