Home / 19,962.79-27,552.18-12,005.55

Finding the Fourth Proportional to 19,962.79, 27,552.18 and 12,005.55

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Solution

The fourth proportional to 19,962.79, 27,552.18 and 12,005.55 is: 16,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,962.79 : 27,552.18 = 12,005.55 : x
  2. Step 2: Convert to fraction form
    19,962.79/27,552.18 = 12,005.55/x
  3. Step 3: Cross multiply
    19,962.79x = 27,552.18 × 12,005.55
  4. Step 4: Simplify right side
    19,962.79x = 330,779,119.62
  5. Step 5: Solve for x
    x = 330,779,119.62/19,962.79
  6. Step 6: Final answer
    x = 16,569.79

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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.