Home / 21,466.08-32,127.12-20,648.16

Finding the Fourth Proportional to 21,466.08, 32,127.12 and 20,648.16

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Solution

The fourth proportional to 21,466.08, 32,127.12 and 20,648.16 is: 30,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.08 : 32,127.12 = 20,648.16 : x
  2. Step 2: Convert to fraction form
    21,466.08/32,127.12 = 20,648.16/x
  3. Step 3: Cross multiply
    21,466.08x = 32,127.12 × 20,648.16
  4. Step 4: Simplify right side
    21,466.08x = 663,365,914.10
  5. Step 5: Solve for x
    x = 663,365,914.10/21,466.08
  6. Step 6: Final answer
    x = 30,902.98

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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.