Home / 21,418.90-29,566.60-14,521.66

Finding the Fourth Proportional to 21,418.90, 29,566.60 and 14,521.66

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Solution

The fourth proportional to 21,418.90, 29,566.60 and 14,521.66 is: 20,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.90 : 29,566.60 = 14,521.66 : x
  2. Step 2: Convert to fraction form
    21,418.90/29,566.60 = 14,521.66/x
  3. Step 3: Cross multiply
    21,418.90x = 29,566.60 × 14,521.66
  4. Step 4: Simplify right side
    21,418.90x = 429,356,112.56
  5. Step 5: Solve for x
    x = 429,356,112.56/21,418.90
  6. Step 6: Final answer
    x = 20,045.67

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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.