Home / 19,543.78-29,315.26-4,752.78

Finding the Fourth Proportional to 19,543.78, 29,315.26 and 4,752.78

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Solution

The fourth proportional to 19,543.78, 29,315.26 and 4,752.78 is: 7,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.78 : 29,315.26 = 4,752.78 : x
  2. Step 2: Convert to fraction form
    19,543.78/29,315.26 = 4,752.78/x
  3. Step 3: Cross multiply
    19,543.78x = 29,315.26 × 4,752.78
  4. Step 4: Simplify right side
    19,543.78x = 139,328,877.43
  5. Step 5: Solve for x
    x = 139,328,877.43/19,543.78
  6. Step 6: Final answer
    x = 7,129.06

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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.