Home / 39,212.18-54,113.04-21,307.19

Finding the Fourth Proportional to 39,212.18, 54,113.04 and 21,307.19

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Solution

The fourth proportional to 39,212.18, 54,113.04 and 21,307.19 is: 29,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,212.18 : 54,113.04 = 21,307.19 : x
  2. Step 2: Convert to fraction form
    39,212.18/54,113.04 = 21,307.19/x
  3. Step 3: Cross multiply
    39,212.18x = 54,113.04 × 21,307.19
  4. Step 4: Simplify right side
    39,212.18x = 1,152,996,554.19
  5. Step 5: Solve for x
    x = 1,152,996,554.19/39,212.18
  6. Step 6: Final answer
    x = 29,404.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.