Home / 21,448.20-32,172.30-13,256.20

Finding the Fourth Proportional to 21,448.20, 32,172.30 and 13,256.20

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Solution

The fourth proportional to 21,448.20, 32,172.30 and 13,256.20 is: 19,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.20 : 32,172.30 = 13,256.20 : x
  2. Step 2: Convert to fraction form
    21,448.20/32,172.30 = 13,256.20/x
  3. Step 3: Cross multiply
    21,448.20x = 32,172.30 × 13,256.20
  4. Step 4: Simplify right side
    21,448.20x = 426,482,443.26
  5. Step 5: Solve for x
    x = 426,482,443.26/21,448.20
  6. Step 6: Final answer
    x = 19,884.30

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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.