Home / 25,138.07-34,690.89-13,808.58

Finding the Fourth Proportional to 25,138.07, 34,690.89 and 13,808.58

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Solution

The fourth proportional to 25,138.07, 34,690.89 and 13,808.58 is: 19,056.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.07 : 34,690.89 = 13,808.58 : x
  2. Step 2: Convert to fraction form
    25,138.07/34,690.89 = 13,808.58/x
  3. Step 3: Cross multiply
    25,138.07x = 34,690.89 × 13,808.58
  4. Step 4: Simplify right side
    25,138.07x = 479,031,929.84
  5. Step 5: Solve for x
    x = 479,031,929.84/25,138.07
  6. Step 6: Final answer
    x = 19,056.04

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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.