Home / 17,943.78-24,762.02-9,985.52

Finding the Fourth Proportional to 17,943.78, 24,762.02 and 9,985.52

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Solution

The fourth proportional to 17,943.78, 24,762.02 and 9,985.52 is: 13,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,943.78 : 24,762.02 = 9,985.52 : x
  2. Step 2: Convert to fraction form
    17,943.78/24,762.02 = 9,985.52/x
  3. Step 3: Cross multiply
    17,943.78x = 24,762.02 × 9,985.52
  4. Step 4: Simplify right side
    17,943.78x = 247,261,645.95
  5. Step 5: Solve for x
    x = 247,261,645.95/17,943.78
  6. Step 6: Final answer
    x = 13,779.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.