Home / 28,505.16-39,351.15-17,900.64

Finding the Fourth Proportional to 28,505.16, 39,351.15 and 17,900.64

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Solution

The fourth proportional to 28,505.16, 39,351.15 and 17,900.64 is: 24,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,505.16 : 39,351.15 = 17,900.64 : x
  2. Step 2: Convert to fraction form
    28,505.16/39,351.15 = 17,900.64/x
  3. Step 3: Cross multiply
    28,505.16x = 39,351.15 × 17,900.64
  4. Step 4: Simplify right side
    28,505.16x = 704,410,769.74
  5. Step 5: Solve for x
    x = 704,410,769.74/28,505.16
  6. Step 6: Final answer
    x = 24,711.69

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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.