Home / 21,894.22-30,182.54-15,595.66

Finding the Fourth Proportional to 21,894.22, 30,182.54 and 15,595.66

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Solution

The fourth proportional to 21,894.22, 30,182.54 and 15,595.66 is: 21,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.22 : 30,182.54 = 15,595.66 : x
  2. Step 2: Convert to fraction form
    21,894.22/30,182.54 = 15,595.66/x
  3. Step 3: Cross multiply
    21,894.22x = 30,182.54 × 15,595.66
  4. Step 4: Simplify right side
    21,894.22x = 470,716,698.35
  5. Step 5: Solve for x
    x = 470,716,698.35/21,894.22
  6. Step 6: Final answer
    x = 21,499.58

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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.