Home / 28,189.80-38,901.72-16,253.04

Finding the Fourth Proportional to 28,189.80, 38,901.72 and 16,253.04

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Solution

The fourth proportional to 28,189.80, 38,901.72 and 16,253.04 is: 22,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.80 : 38,901.72 = 16,253.04 : x
  2. Step 2: Convert to fraction form
    28,189.80/38,901.72 = 16,253.04/x
  3. Step 3: Cross multiply
    28,189.80x = 38,901.72 × 16,253.04
  4. Step 4: Simplify right side
    28,189.80x = 632,271,211.23
  5. Step 5: Solve for x
    x = 632,271,211.23/28,189.80
  6. Step 6: Final answer
    x = 22,429.08

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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.