Home / 21,968.08-32,931.60-8,829.40

Finding the Fourth Proportional to 21,968.08, 32,931.60 and 8,829.40

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Solution

The fourth proportional to 21,968.08, 32,931.60 and 8,829.40 is: 13,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.08 : 32,931.60 = 8,829.40 : x
  2. Step 2: Convert to fraction form
    21,968.08/32,931.60 = 8,829.40/x
  3. Step 3: Cross multiply
    21,968.08x = 32,931.60 × 8,829.40
  4. Step 4: Simplify right side
    21,968.08x = 290,766,269.04
  5. Step 5: Solve for x
    x = 290,766,269.04/21,968.08
  6. Step 6: Final answer
    x = 13,235.85

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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.