Home / 27,803.03-38,367.45-15,538.53

Finding the Fourth Proportional to 27,803.03, 38,367.45 and 15,538.53

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Solution

The fourth proportional to 27,803.03, 38,367.45 and 15,538.53 is: 21,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.03 : 38,367.45 = 15,538.53 : x
  2. Step 2: Convert to fraction form
    27,803.03/38,367.45 = 15,538.53/x
  3. Step 3: Cross multiply
    27,803.03x = 38,367.45 × 15,538.53
  4. Step 4: Simplify right side
    27,803.03x = 596,173,772.85
  5. Step 5: Solve for x
    x = 596,173,772.85/27,803.03
  6. Step 6: Final answer
    x = 21,442.77

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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.