Home / 28,577.10-42,865.65-10,109.10

Finding the Fourth Proportional to 28,577.10, 42,865.65 and 10,109.10

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Solution

The fourth proportional to 28,577.10, 42,865.65 and 10,109.10 is: 15,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.10 : 42,865.65 = 10,109.10 : x
  2. Step 2: Convert to fraction form
    28,577.10/42,865.65 = 10,109.10/x
  3. Step 3: Cross multiply
    28,577.10x = 42,865.65 × 10,109.10
  4. Step 4: Simplify right side
    28,577.10x = 433,333,142.42
  5. Step 5: Solve for x
    x = 433,333,142.42/28,577.10
  6. Step 6: Final answer
    x = 15,163.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.