Home / 23,809.80-32,885.55-15,837.78

Finding the Fourth Proportional to 23,809.80, 32,885.55 and 15,837.78

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Solution

The fourth proportional to 23,809.80, 32,885.55 and 15,837.78 is: 21,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,809.80 : 32,885.55 = 15,837.78 : x
  2. Step 2: Convert to fraction form
    23,809.80/32,885.55 = 15,837.78/x
  3. Step 3: Cross multiply
    23,809.80x = 32,885.55 × 15,837.78
  4. Step 4: Simplify right side
    23,809.80x = 520,834,106.08
  5. Step 5: Solve for x
    x = 520,834,106.08/23,809.80
  6. Step 6: Final answer
    x = 21,874.78

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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.