Home / 19,916.20-29,878.40-16,652.10

Finding the Fourth Proportional to 19,916.20, 29,878.40 and 16,652.10

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Solution

The fourth proportional to 19,916.20, 29,878.40 and 16,652.10 is: 24,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.20 : 29,878.40 = 16,652.10 : x
  2. Step 2: Convert to fraction form
    19,916.20/29,878.40 = 16,652.10/x
  3. Step 3: Cross multiply
    19,916.20x = 29,878.40 × 16,652.10
  4. Step 4: Simplify right side
    19,916.20x = 497,538,104.64
  5. Step 5: Solve for x
    x = 497,538,104.64/19,916.20
  6. Step 6: Final answer
    x = 24,981.58

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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.