Home / 27,911.86-38,518.81-15,165.02

Finding the Fourth Proportional to 27,911.86, 38,518.81 and 15,165.02

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Solution

The fourth proportional to 27,911.86, 38,518.81 and 15,165.02 is: 20,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.86 : 38,518.81 = 15,165.02 : x
  2. Step 2: Convert to fraction form
    27,911.86/38,518.81 = 15,165.02/x
  3. Step 3: Cross multiply
    27,911.86x = 38,518.81 × 15,165.02
  4. Step 4: Simplify right side
    27,911.86x = 584,138,582.41
  5. Step 5: Solve for x
    x = 584,138,582.41/27,911.86
  6. Step 6: Final answer
    x = 20,927.97

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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.