Home / 25,929.72-35,782.16-15,319.13

Finding the Fourth Proportional to 25,929.72, 35,782.16 and 15,319.13

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Solution

The fourth proportional to 25,929.72, 35,782.16 and 15,319.13 is: 21,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.72 : 35,782.16 = 15,319.13 : x
  2. Step 2: Convert to fraction form
    25,929.72/35,782.16 = 15,319.13/x
  3. Step 3: Cross multiply
    25,929.72x = 35,782.16 × 15,319.13
  4. Step 4: Simplify right side
    25,929.72x = 548,151,305.21
  5. Step 5: Solve for x
    x = 548,151,305.21/25,929.72
  6. Step 6: Final answer
    x = 21,139.89

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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.