Home / 39,401.04-54,371.70-21,495.72

Finding the Fourth Proportional to 39,401.04, 54,371.70 and 21,495.72

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Solution

The fourth proportional to 39,401.04, 54,371.70 and 21,495.72 is: 29,663.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,401.04 : 54,371.70 = 21,495.72 : x
  2. Step 2: Convert to fraction form
    39,401.04/54,371.70 = 21,495.72/x
  3. Step 3: Cross multiply
    39,401.04x = 54,371.70 × 21,495.72
  4. Step 4: Simplify right side
    39,401.04x = 1,168,758,839.12
  5. Step 5: Solve for x
    x = 1,168,758,839.12/39,401.04
  6. Step 6: Final answer
    x = 29,663.15

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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.