Home / 15,987.84-22,069.30-12,020.48

Finding the Fourth Proportional to 15,987.84, 22,069.30 and 12,020.48

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Solution

The fourth proportional to 15,987.84, 22,069.30 and 12,020.48 is: 16,592.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.84 : 22,069.30 = 12,020.48 : x
  2. Step 2: Convert to fraction form
    15,987.84/22,069.30 = 12,020.48/x
  3. Step 3: Cross multiply
    15,987.84x = 22,069.30 × 12,020.48
  4. Step 4: Simplify right side
    15,987.84x = 265,283,579.26
  5. Step 5: Solve for x
    x = 265,283,579.26/15,987.84
  6. Step 6: Final answer
    x = 16,592.83

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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.