Home / 21,957.03-30,300.42-11,885.22

Finding the Fourth Proportional to 21,957.03, 30,300.42 and 11,885.22

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Solution

The fourth proportional to 21,957.03, 30,300.42 and 11,885.22 is: 16,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.03 : 30,300.42 = 11,885.22 : x
  2. Step 2: Convert to fraction form
    21,957.03/30,300.42 = 11,885.22/x
  3. Step 3: Cross multiply
    21,957.03x = 30,300.42 × 11,885.22
  4. Step 4: Simplify right side
    21,957.03x = 360,127,157.79
  5. Step 5: Solve for x
    x = 360,127,157.79/21,957.03
  6. Step 6: Final answer
    x = 16,401.45

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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.