Home / 23,390.84-32,278.65-12,780.46

Finding the Fourth Proportional to 23,390.84, 32,278.65 and 12,780.46

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Solution

The fourth proportional to 23,390.84, 32,278.65 and 12,780.46 is: 17,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.84 : 32,278.65 = 12,780.46 : x
  2. Step 2: Convert to fraction form
    23,390.84/32,278.65 = 12,780.46/x
  3. Step 3: Cross multiply
    23,390.84x = 32,278.65 × 12,780.46
  4. Step 4: Simplify right side
    23,390.84x = 412,535,987.60
  5. Step 5: Solve for x
    x = 412,535,987.60/23,390.84
  6. Step 6: Final answer
    x = 17,636.65

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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.