Home / 21,751.20-32,630.40-9,277.20

Finding the Fourth Proportional to 21,751.20, 32,630.40 and 9,277.20

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Solution

The fourth proportional to 21,751.20, 32,630.40 and 9,277.20 is: 13,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.20 : 32,630.40 = 9,277.20 : x
  2. Step 2: Convert to fraction form
    21,751.20/32,630.40 = 9,277.20/x
  3. Step 3: Cross multiply
    21,751.20x = 32,630.40 × 9,277.20
  4. Step 4: Simplify right side
    21,751.20x = 302,718,746.88
  5. Step 5: Solve for x
    x = 302,718,746.88/21,751.20
  6. Step 6: Final answer
    x = 13,917.34

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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.