Home / 28,199.47-42,299.49-11,340.28

Finding the Fourth Proportional to 28,199.47, 42,299.49 and 11,340.28

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Solution

The fourth proportional to 28,199.47, 42,299.49 and 11,340.28 is: 17,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.47 : 42,299.49 = 11,340.28 : x
  2. Step 2: Convert to fraction form
    28,199.47/42,299.49 = 11,340.28/x
  3. Step 3: Cross multiply
    28,199.47x = 42,299.49 × 11,340.28
  4. Step 4: Simplify right side
    28,199.47x = 479,688,060.46
  5. Step 5: Solve for x
    x = 479,688,060.46/28,199.47
  6. Step 6: Final answer
    x = 17,010.53

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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.