Home / 21,752.10-32,640.45-9,270.81

Finding the Fourth Proportional to 21,752.10, 32,640.45 and 9,270.81

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Solution

The fourth proportional to 21,752.10, 32,640.45 and 9,270.81 is: 13,911.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,752.10 : 32,640.45 = 9,270.81 : x
  2. Step 2: Convert to fraction form
    21,752.10/32,640.45 = 9,270.81/x
  3. Step 3: Cross multiply
    21,752.10x = 32,640.45 × 9,270.81
  4. Step 4: Simplify right side
    21,752.10x = 302,603,410.26
  5. Step 5: Solve for x
    x = 302,603,410.26/21,752.10
  6. Step 6: Final answer
    x = 13,911.46

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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.