Home / 42,014.64-63,021.78-12,432.66

Finding the Fourth Proportional to 42,014.64, 63,021.78 and 12,432.66

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Solution

The fourth proportional to 42,014.64, 63,021.78 and 12,432.66 is: 18,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,014.64 : 63,021.78 = 12,432.66 : x
  2. Step 2: Convert to fraction form
    42,014.64/63,021.78 = 12,432.66/x
  3. Step 3: Cross multiply
    42,014.64x = 63,021.78 × 12,432.66
  4. Step 4: Simplify right side
    42,014.64x = 783,528,363.33
  5. Step 5: Solve for x
    x = 783,528,363.33/42,014.64
  6. Step 6: Final answer
    x = 18,648.94

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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.