Home / 29,115.12-43,681.77-12,256.98

Finding the Fourth Proportional to 29,115.12, 43,681.77 and 12,256.98

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Solution

The fourth proportional to 29,115.12, 43,681.77 and 12,256.98 is: 18,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.12 : 43,681.77 = 12,256.98 : x
  2. Step 2: Convert to fraction form
    29,115.12/43,681.77 = 12,256.98/x
  3. Step 3: Cross multiply
    29,115.12x = 43,681.77 × 12,256.98
  4. Step 4: Simplify right side
    29,115.12x = 535,406,581.25
  5. Step 5: Solve for x
    x = 535,406,581.25/29,115.12
  6. Step 6: Final answer
    x = 18,389.30

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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.