Home / 28,971.52-43,424.16-12,307.12

Finding the Fourth Proportional to 28,971.52, 43,424.16 and 12,307.12

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Solution

The fourth proportional to 28,971.52, 43,424.16 and 12,307.12 is: 18,446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.52 : 43,424.16 = 12,307.12 : x
  2. Step 2: Convert to fraction form
    28,971.52/43,424.16 = 12,307.12/x
  3. Step 3: Cross multiply
    28,971.52x = 43,424.16 × 12,307.12
  4. Step 4: Simplify right side
    28,971.52x = 534,426,348.02
  5. Step 5: Solve for x
    x = 534,426,348.02/28,971.52
  6. Step 6: Final answer
    x = 18,446.61

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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.