Home / 21,865.92-30,176.64-12,433.92

Finding the Fourth Proportional to 21,865.92, 30,176.64 and 12,433.92

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Solution

The fourth proportional to 21,865.92, 30,176.64 and 12,433.92 is: 17,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.92 : 30,176.64 = 12,433.92 : x
  2. Step 2: Convert to fraction form
    21,865.92/30,176.64 = 12,433.92/x
  3. Step 3: Cross multiply
    21,865.92x = 30,176.64 × 12,433.92
  4. Step 4: Simplify right side
    21,865.92x = 375,213,927.63
  5. Step 5: Solve for x
    x = 375,213,927.63/21,865.92
  6. Step 6: Final answer
    x = 17,159.76

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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.