Home / 27,725.15-38,260.67-15,788.49

Finding the Fourth Proportional to 27,725.15, 38,260.67 and 15,788.49

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Solution

The fourth proportional to 27,725.15, 38,260.67 and 15,788.49 is: 21,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,725.15 : 38,260.67 = 15,788.49 : x
  2. Step 2: Convert to fraction form
    27,725.15/38,260.67 = 15,788.49/x
  3. Step 3: Cross multiply
    27,725.15x = 38,260.67 × 15,788.49
  4. Step 4: Simplify right side
    27,725.15x = 604,078,222.40
  5. Step 5: Solve for x
    x = 604,078,222.40/27,725.15
  6. Step 6: Final answer
    x = 21,788.10

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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.