Home / 25,930.16-35,784.08-15,319.77

Finding the Fourth Proportional to 25,930.16, 35,784.08 and 15,319.77

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Solution

The fourth proportional to 25,930.16, 35,784.08 and 15,319.77 is: 21,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,930.16 : 35,784.08 = 15,319.77 : x
  2. Step 2: Convert to fraction form
    25,930.16/35,784.08 = 15,319.77/x
  3. Step 3: Cross multiply
    25,930.16x = 35,784.08 × 15,319.77
  4. Step 4: Simplify right side
    25,930.16x = 548,203,721.92
  5. Step 5: Solve for x
    x = 548,203,721.92/25,930.16
  6. Step 6: Final answer
    x = 21,141.55

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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.