Home / 21,973.23-30,323.09-11,901.69

Finding the Fourth Proportional to 21,973.23, 30,323.09 and 11,901.69

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Solution

The fourth proportional to 21,973.23, 30,323.09 and 11,901.69 is: 16,424.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.23 : 30,323.09 = 11,901.69 : x
  2. Step 2: Convert to fraction form
    21,973.23/30,323.09 = 11,901.69/x
  3. Step 3: Cross multiply
    21,973.23x = 30,323.09 × 11,901.69
  4. Step 4: Simplify right side
    21,973.23x = 360,895,957.51
  5. Step 5: Solve for x
    x = 360,895,957.51/21,973.23
  6. Step 6: Final answer
    x = 16,424.35

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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.