Home / 21,972.36-32,941.50-10,871.40

Finding the Fourth Proportional to 21,972.36, 32,941.50 and 10,871.40

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Solution

The fourth proportional to 21,972.36, 32,941.50 and 10,871.40 is: 16,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.36 : 32,941.50 = 10,871.40 : x
  2. Step 2: Convert to fraction form
    21,972.36/32,941.50 = 10,871.40/x
  3. Step 3: Cross multiply
    21,972.36x = 32,941.50 × 10,871.40
  4. Step 4: Simplify right side
    21,972.36x = 358,120,223.10
  5. Step 5: Solve for x
    x = 358,120,223.10/21,972.36
  6. Step 6: Final answer
    x = 16,298.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.