Home / 27,803.23-38,371.21-15,868.35

Finding the Fourth Proportional to 27,803.23, 38,371.21 and 15,868.35

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Solution

The fourth proportional to 27,803.23, 38,371.21 and 15,868.35 is: 21,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.23 : 38,371.21 = 15,868.35 : x
  2. Step 2: Convert to fraction form
    27,803.23/38,371.21 = 15,868.35/x
  3. Step 3: Cross multiply
    27,803.23x = 38,371.21 × 15,868.35
  4. Step 4: Simplify right side
    27,803.23x = 608,887,710.86
  5. Step 5: Solve for x
    x = 608,887,710.86/27,803.23
  6. Step 6: Final answer
    x = 21,899.89

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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.