Home / 21,973.20-30,323.08-11,901.66

Finding the Fourth Proportional to 21,973.20, 30,323.08 and 11,901.66

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Solution

The fourth proportional to 21,973.20, 30,323.08 and 11,901.66 is: 16,424.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.20 : 30,323.08 = 11,901.66 : x
  2. Step 2: Convert to fraction form
    21,973.20/30,323.08 = 11,901.66/x
  3. Step 3: Cross multiply
    21,973.20x = 30,323.08 × 11,901.66
  4. Step 4: Simplify right side
    21,973.20x = 360,894,988.31
  5. Step 5: Solve for x
    x = 360,894,988.31/21,973.20
  6. Step 6: Final answer
    x = 16,424.33

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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.