Home / 21,617.58-32,431.64-9,130.90

Finding the Fourth Proportional to 21,617.58, 32,431.64 and 9,130.90

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Solution

The fourth proportional to 21,617.58, 32,431.64 and 9,130.90 is: 13,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.58 : 32,431.64 = 9,130.90 : x
  2. Step 2: Convert to fraction form
    21,617.58/32,431.64 = 9,130.90/x
  3. Step 3: Cross multiply
    21,617.58x = 32,431.64 × 9,130.90
  4. Step 4: Simplify right side
    21,617.58x = 296,130,061.68
  5. Step 5: Solve for x
    x = 296,130,061.68/21,617.58
  6. Step 6: Final answer
    x = 13,698.58

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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.