Home / 21,957.99-30,301.92-11,886.45

Finding the Fourth Proportional to 21,957.99, 30,301.92 and 11,886.45

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Solution

The fourth proportional to 21,957.99, 30,301.92 and 11,886.45 is: 16,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.99 : 30,301.92 = 11,886.45 : x
  2. Step 2: Convert to fraction form
    21,957.99/30,301.92 = 11,886.45/x
  3. Step 3: Cross multiply
    21,957.99x = 30,301.92 × 11,886.45
  4. Step 4: Simplify right side
    21,957.99x = 360,182,256.98
  5. Step 5: Solve for x
    x = 360,182,256.98/21,957.99
  6. Step 6: Final answer
    x = 16,403.24

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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.