Home / 21,578.15-29,787.05-14,508.67

Finding the Fourth Proportional to 21,578.15, 29,787.05 and 14,508.67

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Solution

The fourth proportional to 21,578.15, 29,787.05 and 14,508.67 is: 20,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.15 : 29,787.05 = 14,508.67 : x
  2. Step 2: Convert to fraction form
    21,578.15/29,787.05 = 14,508.67/x
  3. Step 3: Cross multiply
    21,578.15x = 29,787.05 × 14,508.67
  4. Step 4: Simplify right side
    21,578.15x = 432,170,478.72
  5. Step 5: Solve for x
    x = 432,170,478.72/21,578.15
  6. Step 6: Final answer
    x = 20,028.15

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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.