Home / 28,245.85-42,368.74-10,715.65

Finding the Fourth Proportional to 28,245.85, 42,368.74 and 10,715.65

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Solution

The fourth proportional to 28,245.85, 42,368.74 and 10,715.65 is: 16,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.85 : 42,368.74 = 10,715.65 : x
  2. Step 2: Convert to fraction form
    28,245.85/42,368.74 = 10,715.65/x
  3. Step 3: Cross multiply
    28,245.85x = 42,368.74 × 10,715.65
  4. Step 4: Simplify right side
    28,245.85x = 454,008,456.07
  5. Step 5: Solve for x
    x = 454,008,456.07/28,245.85
  6. Step 6: Final answer
    x = 16,073.46

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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.