Home / 28,509.85-42,747.01-10,975.58

Finding the Fourth Proportional to 28,509.85, 42,747.01 and 10,975.58

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Solution

The fourth proportional to 28,509.85, 42,747.01 and 10,975.58 is: 16,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.85 : 42,747.01 = 10,975.58 : x
  2. Step 2: Convert to fraction form
    28,509.85/42,747.01 = 10,975.58/x
  3. Step 3: Cross multiply
    28,509.85x = 42,747.01 × 10,975.58
  4. Step 4: Simplify right side
    28,509.85x = 469,172,959.40
  5. Step 5: Solve for x
    x = 469,172,959.40/28,509.85
  6. Step 6: Final answer
    x = 16,456.52

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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.