Home / 21,764.08-32,640.60-9,277.20

Finding the Fourth Proportional to 21,764.08, 32,640.60 and 9,277.20

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Solution

The fourth proportional to 21,764.08, 32,640.60 and 9,277.20 is: 13,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.08 : 32,640.60 = 9,277.20 : x
  2. Step 2: Convert to fraction form
    21,764.08/32,640.60 = 9,277.20/x
  3. Step 3: Cross multiply
    21,764.08x = 32,640.60 × 9,277.20
  4. Step 4: Simplify right side
    21,764.08x = 302,813,374.32
  5. Step 5: Solve for x
    x = 302,813,374.32/21,764.08
  6. Step 6: Final answer
    x = 13,913.45

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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.