Home / 28,328.70-42,493.08-7,552.20

Finding the Fourth Proportional to 28,328.70, 42,493.08 and 7,552.20

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Solution

The fourth proportional to 28,328.70, 42,493.08 and 7,552.20 is: 11,328.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.70 : 42,493.08 = 7,552.20 : x
  2. Step 2: Convert to fraction form
    28,328.70/42,493.08 = 7,552.20/x
  3. Step 3: Cross multiply
    28,328.70x = 42,493.08 × 7,552.20
  4. Step 4: Simplify right side
    28,328.70x = 320,916,238.78
  5. Step 5: Solve for x
    x = 320,916,238.78/28,328.70
  6. Step 6: Final answer
    x = 11,328.31

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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.