Home / 39,199.12-54,095.16-21,294.26

Finding the Fourth Proportional to 39,199.12, 54,095.16 and 21,294.26

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Solution

The fourth proportional to 39,199.12, 54,095.16 and 21,294.26 is: 29,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,199.12 : 54,095.16 = 21,294.26 : x
  2. Step 2: Convert to fraction form
    39,199.12/54,095.16 = 21,294.26/x
  3. Step 3: Cross multiply
    39,199.12x = 54,095.16 × 21,294.26
  4. Step 4: Simplify right side
    39,199.12x = 1,151,916,401.78
  5. Step 5: Solve for x
    x = 1,151,916,401.78/39,199.12
  6. Step 6: Final answer
    x = 29,386.28

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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.