Home / 21,955.71-30,298.77-11,884.14

Finding the Fourth Proportional to 21,955.71, 30,298.77 and 11,884.14

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Solution

The fourth proportional to 21,955.71, 30,298.77 and 11,884.14 is: 16,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.71 : 30,298.77 = 11,884.14 : x
  2. Step 2: Convert to fraction form
    21,955.71/30,298.77 = 11,884.14/x
  3. Step 3: Cross multiply
    21,955.71x = 30,298.77 × 11,884.14
  4. Step 4: Simplify right side
    21,955.71x = 360,074,824.51
  5. Step 5: Solve for x
    x = 360,074,824.51/21,955.71
  6. Step 6: Final answer
    x = 16,400.05

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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.