Home / 28,123.74-42,180.75-9,401.94

Finding the Fourth Proportional to 28,123.74, 42,180.75 and 9,401.94

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Solution

The fourth proportional to 28,123.74, 42,180.75 and 9,401.94 is: 14,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.74 : 42,180.75 = 9,401.94 : x
  2. Step 2: Convert to fraction form
    28,123.74/42,180.75 = 9,401.94/x
  3. Step 3: Cross multiply
    28,123.74x = 42,180.75 × 9,401.94
  4. Step 4: Simplify right side
    28,123.74x = 396,580,880.66
  5. Step 5: Solve for x
    x = 396,580,880.66/28,123.74
  6. Step 6: Final answer
    x = 14,101.29

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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.