Home / 21,895.51-30,214.08-12,334.88

Finding the Fourth Proportional to 21,895.51, 30,214.08 and 12,334.88

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Solution

The fourth proportional to 21,895.51, 30,214.08 and 12,334.88 is: 17,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.51 : 30,214.08 = 12,334.88 : x
  2. Step 2: Convert to fraction form
    21,895.51/30,214.08 = 12,334.88/x
  3. Step 3: Cross multiply
    21,895.51x = 30,214.08 × 12,334.88
  4. Step 4: Simplify right side
    21,895.51x = 372,686,900.04
  5. Step 5: Solve for x
    x = 372,686,900.04/21,895.51
  6. Step 6: Final answer
    x = 17,021.16

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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.