Home / 28,070.74-42,106.82-8,349.47

Finding the Fourth Proportional to 28,070.74, 42,106.82 and 8,349.47

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Solution

The fourth proportional to 28,070.74, 42,106.82 and 8,349.47 is: 12,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.74 : 42,106.82 = 8,349.47 : x
  2. Step 2: Convert to fraction form
    28,070.74/42,106.82 = 8,349.47/x
  3. Step 3: Cross multiply
    28,070.74x = 42,106.82 × 8,349.47
  4. Step 4: Simplify right side
    28,070.74x = 351,569,630.39
  5. Step 5: Solve for x
    x = 351,569,630.39/28,070.74
  6. Step 6: Final answer
    x = 12,524.42

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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.