Home / 21,962.10-32,921.55-19,629.30

Finding the Fourth Proportional to 21,962.10, 32,921.55 and 19,629.30

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Solution

The fourth proportional to 21,962.10, 32,921.55 and 19,629.30 is: 29,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.10 : 32,921.55 = 19,629.30 : x
  2. Step 2: Convert to fraction form
    21,962.10/32,921.55 = 19,629.30/x
  3. Step 3: Cross multiply
    21,962.10x = 32,921.55 × 19,629.30
  4. Step 4: Simplify right side
    21,962.10x = 646,226,981.42
  5. Step 5: Solve for x
    x = 646,226,981.42/21,962.10
  6. Step 6: Final answer
    x = 29,424.64

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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.