Home / 21,655.51-29,882.52-12,094.67

Finding the Fourth Proportional to 21,655.51, 29,882.52 and 12,094.67

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Solution

The fourth proportional to 21,655.51, 29,882.52 and 12,094.67 is: 16,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.51 : 29,882.52 = 12,094.67 : x
  2. Step 2: Convert to fraction form
    21,655.51/29,882.52 = 12,094.67/x
  3. Step 3: Cross multiply
    21,655.51x = 29,882.52 × 12,094.67
  4. Step 4: Simplify right side
    21,655.51x = 361,419,292.87
  5. Step 5: Solve for x
    x = 361,419,292.87/21,655.51
  6. Step 6: Final answer
    x = 16,689.49

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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.