Home / 38,582.78-57,878.42-12,281.36

Finding the Fourth Proportional to 38,582.78, 57,878.42 and 12,281.36

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Solution

The fourth proportional to 38,582.78, 57,878.42 and 12,281.36 is: 18,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,582.78 : 57,878.42 = 12,281.36 : x
  2. Step 2: Convert to fraction form
    38,582.78/57,878.42 = 12,281.36/x
  3. Step 3: Cross multiply
    38,582.78x = 57,878.42 × 12,281.36
  4. Step 4: Simplify right side
    38,582.78x = 710,825,361.45
  5. Step 5: Solve for x
    x = 710,825,361.45/38,582.78
  6. Step 6: Final answer
    x = 18,423.39

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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.