Home / 42,916.78-64,378.05-14,839.57

Finding the Fourth Proportional to 42,916.78, 64,378.05 and 14,839.57

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Solution

The fourth proportional to 42,916.78, 64,378.05 and 14,839.57 is: 22,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,916.78 : 64,378.05 = 14,839.57 : x
  2. Step 2: Convert to fraction form
    42,916.78/64,378.05 = 14,839.57/x
  3. Step 3: Cross multiply
    42,916.78x = 64,378.05 × 14,839.57
  4. Step 4: Simplify right side
    42,916.78x = 955,342,579.44
  5. Step 5: Solve for x
    x = 955,342,579.44/42,916.78
  6. Step 6: Final answer
    x = 22,260.35

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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.