Home / 20,896.08-31,307.65-17,408.49

Finding the Fourth Proportional to 20,896.08, 31,307.65 and 17,408.49

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Solution

The fourth proportional to 20,896.08, 31,307.65 and 17,408.49 is: 26,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.08 : 31,307.65 = 17,408.49 : x
  2. Step 2: Convert to fraction form
    20,896.08/31,307.65 = 17,408.49/x
  3. Step 3: Cross multiply
    20,896.08x = 31,307.65 × 17,408.49
  4. Step 4: Simplify right side
    20,896.08x = 545,018,751.02
  5. Step 5: Solve for x
    x = 545,018,751.02/20,896.08
  6. Step 6: Final answer
    x = 26,082.35

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1.5x scale

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.