Home / 28,255.08-42,366.21-10,715.34

Finding the Fourth Proportional to 28,255.08, 42,366.21 and 10,715.34

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Solution

The fourth proportional to 28,255.08, 42,366.21 and 10,715.34 is: 16,066.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.08 : 42,366.21 = 10,715.34 : x
  2. Step 2: Convert to fraction form
    28,255.08/42,366.21 = 10,715.34/x
  3. Step 3: Cross multiply
    28,255.08x = 42,366.21 × 10,715.34
  4. Step 4: Simplify right side
    28,255.08x = 453,968,344.66
  5. Step 5: Solve for x
    x = 453,968,344.66/28,255.08
  6. Step 6: Final answer
    x = 16,066.79

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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.