Home / 28,722.89-43,061.10-12,916.35

Finding the Fourth Proportional to 28,722.89, 43,061.10 and 12,916.35

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Solution

The fourth proportional to 28,722.89, 43,061.10 and 12,916.35 is: 19,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.89 : 43,061.10 = 12,916.35 : x
  2. Step 2: Convert to fraction form
    28,722.89/43,061.10 = 12,916.35/x
  3. Step 3: Cross multiply
    28,722.89x = 43,061.10 × 12,916.35
  4. Step 4: Simplify right side
    28,722.89x = 556,192,263.20
  5. Step 5: Solve for x
    x = 556,192,263.20/28,722.89
  6. Step 6: Final answer
    x = 19,364.08

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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.