Home / 28,191.87-38,890.40-17,577.63

Finding the Fourth Proportional to 28,191.87, 38,890.40 and 17,577.63

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Solution

The fourth proportional to 28,191.87, 38,890.40 and 17,577.63 is: 24,248.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.87 : 38,890.40 = 17,577.63 : x
  2. Step 2: Convert to fraction form
    28,191.87/38,890.40 = 17,577.63/x
  3. Step 3: Cross multiply
    28,191.87x = 38,890.40 × 17,577.63
  4. Step 4: Simplify right side
    28,191.87x = 683,600,973.86
  5. Step 5: Solve for x
    x = 683,600,973.86/28,191.87
  6. Step 6: Final answer
    x = 24,248.16

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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.