Home / 28,335.78-42,475.94-10,553.39

Finding the Fourth Proportional to 28,335.78, 42,475.94 and 10,553.39

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Solution

The fourth proportional to 28,335.78, 42,475.94 and 10,553.39 is: 15,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.78 : 42,475.94 = 10,553.39 : x
  2. Step 2: Convert to fraction form
    28,335.78/42,475.94 = 10,553.39/x
  3. Step 3: Cross multiply
    28,335.78x = 42,475.94 × 10,553.39
  4. Step 4: Simplify right side
    28,335.78x = 448,264,895.29
  5. Step 5: Solve for x
    x = 448,264,895.29/28,335.78
  6. Step 6: Final answer
    x = 15,819.75

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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.