Home / 21,401.10-32,138.10-14,038.20

Finding the Fourth Proportional to 21,401.10, 32,138.10 and 14,038.20

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Solution

The fourth proportional to 21,401.10, 32,138.10 and 14,038.20 is: 21,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.10 : 32,138.10 = 14,038.20 : x
  2. Step 2: Convert to fraction form
    21,401.10/32,138.10 = 14,038.20/x
  3. Step 3: Cross multiply
    21,401.10x = 32,138.10 × 14,038.20
  4. Step 4: Simplify right side
    21,401.10x = 451,161,075.42
  5. Step 5: Solve for x
    x = 451,161,075.42/21,401.10
  6. Step 6: Final answer
    x = 21,081.21

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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.