Home / 27,962.86-38,588.46-15,865.57

Finding the Fourth Proportional to 27,962.86, 38,588.46 and 15,865.57

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Solution

The fourth proportional to 27,962.86, 38,588.46 and 15,865.57 is: 21,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.86 : 38,588.46 = 15,865.57 : x
  2. Step 2: Convert to fraction form
    27,962.86/38,588.46 = 15,865.57/x
  3. Step 3: Cross multiply
    27,962.86x = 38,588.46 × 15,865.57
  4. Step 4: Simplify right side
    27,962.86x = 612,227,913.32
  5. Step 5: Solve for x
    x = 612,227,913.32/27,962.86
  6. Step 6: Final answer
    x = 21,894.32

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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.