Home / 21,916.85-32,869.04-9,434.12

Finding the Fourth Proportional to 21,916.85, 32,869.04 and 9,434.12

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Solution

The fourth proportional to 21,916.85, 32,869.04 and 9,434.12 is: 14,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.85 : 32,869.04 = 9,434.12 : x
  2. Step 2: Convert to fraction form
    21,916.85/32,869.04 = 9,434.12/x
  3. Step 3: Cross multiply
    21,916.85x = 32,869.04 × 9,434.12
  4. Step 4: Simplify right side
    21,916.85x = 310,090,256.13
  5. Step 5: Solve for x
    x = 310,090,256.13/21,916.85
  6. Step 6: Final answer
    x = 14,148.49

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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.