Home / 42,813.60-64,214.40-13,223.04

Finding the Fourth Proportional to 42,813.60, 64,214.40 and 13,223.04

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Solution

The fourth proportional to 42,813.60, 64,214.40 and 13,223.04 is: 19,832.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,813.60 : 64,214.40 = 13,223.04 : x
  2. Step 2: Convert to fraction form
    42,813.60/64,214.40 = 13,223.04/x
  3. Step 3: Cross multiply
    42,813.60x = 64,214.40 × 13,223.04
  4. Step 4: Simplify right side
    42,813.60x = 849,109,579.78
  5. Step 5: Solve for x
    x = 849,109,579.78/42,813.60
  6. Step 6: Final answer
    x = 19,832.71

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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.