Home / 25,209.77-34,790.31-13,879.76

Finding the Fourth Proportional to 25,209.77, 34,790.31 and 13,879.76

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Solution

The fourth proportional to 25,209.77, 34,790.31 and 13,879.76 is: 19,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,209.77 : 34,790.31 = 13,879.76 : x
  2. Step 2: Convert to fraction form
    25,209.77/34,790.31 = 13,879.76/x
  3. Step 3: Cross multiply
    25,209.77x = 34,790.31 × 13,879.76
  4. Step 4: Simplify right side
    25,209.77x = 482,880,979.17
  5. Step 5: Solve for x
    x = 482,880,979.17/25,209.77
  6. Step 6: Final answer
    x = 19,154.52

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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.