Home / 21,916.98-32,895-10,236.78

Finding the Fourth Proportional to 21,916.98, 32,895 and 10,236.78

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Solution

The fourth proportional to 21,916.98, 32,895 and 10,236.78 is: 15,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.98 : 32,895 = 10,236.78 : x
  2. Step 2: Convert to fraction form
    21,916.98/32,895 = 10,236.78/x
  3. Step 3: Cross multiply
    21,916.98x = 32,895 × 10,236.78
  4. Step 4: Simplify right side
    21,916.98x = 336,738,878.10
  5. Step 5: Solve for x
    x = 336,738,878.10/21,916.98
  6. Step 6: Final answer
    x = 15,364.29

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1.5x scale

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.