Home / 28,045.38-42,057.14-10,505.64

Finding the Fourth Proportional to 28,045.38, 42,057.14 and 10,505.64

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Solution

The fourth proportional to 28,045.38, 42,057.14 and 10,505.64 is: 15,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.38 : 42,057.14 = 10,505.64 : x
  2. Step 2: Convert to fraction form
    28,045.38/42,057.14 = 10,505.64/x
  3. Step 3: Cross multiply
    28,045.38x = 42,057.14 × 10,505.64
  4. Step 4: Simplify right side
    28,045.38x = 441,837,119.74
  5. Step 5: Solve for x
    x = 441,837,119.74/28,045.38
  6. Step 6: Final answer
    x = 15,754.36

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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.