Home / 27,823.64-38,400.30-15,884.28

Finding the Fourth Proportional to 27,823.64, 38,400.30 and 15,884.28

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Solution

The fourth proportional to 27,823.64, 38,400.30 and 15,884.28 is: 21,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,823.64 : 38,400.30 = 15,884.28 : x
  2. Step 2: Convert to fraction form
    27,823.64/38,400.30 = 15,884.28/x
  3. Step 3: Cross multiply
    27,823.64x = 38,400.30 × 15,884.28
  4. Step 4: Simplify right side
    27,823.64x = 609,961,117.28
  5. Step 5: Solve for x
    x = 609,961,117.28/27,823.64
  6. Step 6: Final answer
    x = 21,922.41

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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.