Home / 21,303.20-29,397.13-11,742.67

Finding the Fourth Proportional to 21,303.20, 29,397.13 and 11,742.67

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Solution

The fourth proportional to 21,303.20, 29,397.13 and 11,742.67 is: 16,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.20 : 29,397.13 = 11,742.67 : x
  2. Step 2: Convert to fraction form
    21,303.20/29,397.13 = 11,742.67/x
  3. Step 3: Cross multiply
    21,303.20x = 29,397.13 × 11,742.67
  4. Step 4: Simplify right side
    21,303.20x = 345,200,803.93
  5. Step 5: Solve for x
    x = 345,200,803.93/21,303.20
  6. Step 6: Final answer
    x = 16,204.17

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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.