Home / 28,318.80-42,498.54-10,551.90

Finding the Fourth Proportional to 28,318.80, 42,498.54 and 10,551.90

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Solution

The fourth proportional to 28,318.80, 42,498.54 and 10,551.90 is: 15,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.80 : 42,498.54 = 10,551.90 : x
  2. Step 2: Convert to fraction form
    28,318.80/42,498.54 = 10,551.90/x
  3. Step 3: Cross multiply
    28,318.80x = 42,498.54 × 10,551.90
  4. Step 4: Simplify right side
    28,318.80x = 448,440,344.23
  5. Step 5: Solve for x
    x = 448,440,344.23/28,318.80
  6. Step 6: Final answer
    x = 15,835.43

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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.