Home / 27,958.04-38,582.55-15,211.47

Finding the Fourth Proportional to 27,958.04, 38,582.55 and 15,211.47

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Solution

The fourth proportional to 27,958.04, 38,582.55 and 15,211.47 is: 20,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,958.04 : 38,582.55 = 15,211.47 : x
  2. Step 2: Convert to fraction form
    27,958.04/38,582.55 = 15,211.47/x
  3. Step 3: Cross multiply
    27,958.04x = 38,582.55 × 15,211.47
  4. Step 4: Simplify right side
    27,958.04x = 586,897,301.85
  5. Step 5: Solve for x
    x = 586,897,301.85/27,958.04
  6. Step 6: Final answer
    x = 20,992.08

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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.