Home / 21,887.16-30,193.74-14,330.16

Finding the Fourth Proportional to 21,887.16, 30,193.74 and 14,330.16

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Solution

The fourth proportional to 21,887.16, 30,193.74 and 14,330.16 is: 19,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.16 : 30,193.74 = 14,330.16 : x
  2. Step 2: Convert to fraction form
    21,887.16/30,193.74 = 14,330.16/x
  3. Step 3: Cross multiply
    21,887.16x = 30,193.74 × 14,330.16
  4. Step 4: Simplify right side
    21,887.16x = 432,681,125.20
  5. Step 5: Solve for x
    x = 432,681,125.20/21,887.16
  6. Step 6: Final answer
    x = 19,768.72

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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.