Home / 28,022.40-38,677.50-17,420.04

Finding the Fourth Proportional to 28,022.40, 38,677.50 and 17,420.04

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Solution

The fourth proportional to 28,022.40, 38,677.50 and 17,420.04 is: 24,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.40 : 38,677.50 = 17,420.04 : x
  2. Step 2: Convert to fraction form
    28,022.40/38,677.50 = 17,420.04/x
  3. Step 3: Cross multiply
    28,022.40x = 38,677.50 × 17,420.04
  4. Step 4: Simplify right side
    28,022.40x = 673,763,597.10
  5. Step 5: Solve for x
    x = 673,763,597.10/28,022.40
  6. Step 6: Final answer
    x = 24,043.75

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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.