Home / 21,169.85-31,748.27-14,638.01

Finding the Fourth Proportional to 21,169.85, 31,748.27 and 14,638.01

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Solution

The fourth proportional to 21,169.85, 31,748.27 and 14,638.01 is: 21,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.85 : 31,748.27 = 14,638.01 : x
  2. Step 2: Convert to fraction form
    21,169.85/31,748.27 = 14,638.01/x
  3. Step 3: Cross multiply
    21,169.85x = 31,748.27 × 14,638.01
  4. Step 4: Simplify right side
    21,169.85x = 464,731,371.60
  5. Step 5: Solve for x
    x = 464,731,371.60/21,169.85
  6. Step 6: Final answer
    x = 21,952.52

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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.