Home / 21,088.94-29,091.22-13,526.85

Finding the Fourth Proportional to 21,088.94, 29,091.22 and 13,526.85

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Solution

The fourth proportional to 21,088.94, 29,091.22 and 13,526.85 is: 18,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.94 : 29,091.22 = 13,526.85 : x
  2. Step 2: Convert to fraction form
    21,088.94/29,091.22 = 13,526.85/x
  3. Step 3: Cross multiply
    21,088.94x = 29,091.22 × 13,526.85
  4. Step 4: Simplify right side
    21,088.94x = 393,512,644.53
  5. Step 5: Solve for x
    x = 393,512,644.53/21,088.94
  6. Step 6: Final answer
    x = 18,659.67

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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.