Home / 28,916.93-43,381.76-12,291.18

Finding the Fourth Proportional to 28,916.93, 43,381.76 and 12,291.18

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Solution

The fourth proportional to 28,916.93, 43,381.76 and 12,291.18 is: 18,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.93 : 43,381.76 = 12,291.18 : x
  2. Step 2: Convert to fraction form
    28,916.93/43,381.76 = 12,291.18/x
  3. Step 3: Cross multiply
    28,916.93x = 43,381.76 × 12,291.18
  4. Step 4: Simplify right side
    28,916.93x = 533,212,959.42
  5. Step 5: Solve for x
    x = 533,212,959.42/28,916.93
  6. Step 6: Final answer
    x = 18,439.48

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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.