Home / 28,037.49-42,063.80-9,320.55

Finding the Fourth Proportional to 28,037.49, 42,063.80 and 9,320.55

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Solution

The fourth proportional to 28,037.49, 42,063.80 and 9,320.55 is: 13,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.49 : 42,063.80 = 9,320.55 : x
  2. Step 2: Convert to fraction form
    28,037.49/42,063.80 = 9,320.55/x
  3. Step 3: Cross multiply
    28,037.49x = 42,063.80 × 9,320.55
  4. Step 4: Simplify right side
    28,037.49x = 392,057,704.49
  5. Step 5: Solve for x
    x = 392,057,704.49/28,037.49
  6. Step 6: Final answer
    x = 13,983.34

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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.