Home / 29,291.19-40,421.77-15,862.45

Finding the Fourth Proportional to 29,291.19, 40,421.77 and 15,862.45

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Solution

The fourth proportional to 29,291.19, 40,421.77 and 15,862.45 is: 21,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.19 : 40,421.77 = 15,862.45 : x
  2. Step 2: Convert to fraction form
    29,291.19/40,421.77 = 15,862.45/x
  3. Step 3: Cross multiply
    29,291.19x = 40,421.77 × 15,862.45
  4. Step 4: Simplify right side
    29,291.19x = 641,188,070.09
  5. Step 5: Solve for x
    x = 641,188,070.09/29,291.19
  6. Step 6: Final answer
    x = 21,890.13

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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.