Home / 27,911.61-38,518.08-15,164.68

Finding the Fourth Proportional to 27,911.61, 38,518.08 and 15,164.68

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Solution

The fourth proportional to 27,911.61, 38,518.08 and 15,164.68 is: 20,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.61 : 38,518.08 = 15,164.68 : x
  2. Step 2: Convert to fraction form
    27,911.61/38,518.08 = 15,164.68/x
  3. Step 3: Cross multiply
    27,911.61x = 38,518.08 × 15,164.68
  4. Step 4: Simplify right side
    27,911.61x = 584,114,357.41
  5. Step 5: Solve for x
    x = 584,114,357.41/27,911.61
  6. Step 6: Final answer
    x = 20,927.29

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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.