Home / 21,973.30-30,322.75-11,901.67

Finding the Fourth Proportional to 21,973.30, 30,322.75 and 11,901.67

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Solution

The fourth proportional to 21,973.30, 30,322.75 and 11,901.67 is: 16,424.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.30 : 30,322.75 = 11,901.67 : x
  2. Step 2: Convert to fraction form
    21,973.30/30,322.75 = 11,901.67/x
  3. Step 3: Cross multiply
    21,973.30x = 30,322.75 × 11,901.67
  4. Step 4: Simplify right side
    21,973.30x = 360,891,363.99
  5. Step 5: Solve for x
    x = 360,891,363.99/21,973.30
  6. Step 6: Final answer
    x = 16,424.09

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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.