Home / 25,305.12-34,967.43-21,937.14

Finding the Fourth Proportional to 25,305.12, 34,967.43 and 21,937.14

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Solution

The fourth proportional to 25,305.12, 34,967.43 and 21,937.14 is: 30,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.12 : 34,967.43 = 21,937.14 : x
  2. Step 2: Convert to fraction form
    25,305.12/34,967.43 = 21,937.14/x
  3. Step 3: Cross multiply
    25,305.12x = 34,967.43 × 21,937.14
  4. Step 4: Simplify right side
    25,305.12x = 767,085,407.35
  5. Step 5: Solve for x
    x = 767,085,407.35/25,305.12
  6. Step 6: Final answer
    x = 30,313.45

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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.