Home / 21,306.38-29,372.06-14,913.18

Finding the Fourth Proportional to 21,306.38, 29,372.06 and 14,913.18

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Solution

The fourth proportional to 21,306.38, 29,372.06 and 14,913.18 is: 20,558.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.38 : 29,372.06 = 14,913.18 : x
  2. Step 2: Convert to fraction form
    21,306.38/29,372.06 = 14,913.18/x
  3. Step 3: Cross multiply
    21,306.38x = 29,372.06 × 14,913.18
  4. Step 4: Simplify right side
    21,306.38x = 438,030,743.18
  5. Step 5: Solve for x
    x = 438,030,743.18/21,306.38
  6. Step 6: Final answer
    x = 20,558.67

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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.