Home / 14,148.90-21,223.35-13,930.20

Finding the Fourth Proportional to 14,148.90, 21,223.35 and 13,930.20

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Solution

The fourth proportional to 14,148.90, 21,223.35 and 13,930.20 is: 20,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.90 : 21,223.35 = 13,930.20 : x
  2. Step 2: Convert to fraction form
    14,148.90/21,223.35 = 13,930.20/x
  3. Step 3: Cross multiply
    14,148.90x = 21,223.35 × 13,930.20
  4. Step 4: Simplify right side
    14,148.90x = 295,645,510.17
  5. Step 5: Solve for x
    x = 295,645,510.17/14,148.90
  6. Step 6: Final answer
    x = 20,895.30

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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.