Home / 21,621.04-32,443.72-9,935.18

Finding the Fourth Proportional to 21,621.04, 32,443.72 and 9,935.18

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Solution

The fourth proportional to 21,621.04, 32,443.72 and 9,935.18 is: 14,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.04 : 32,443.72 = 9,935.18 : x
  2. Step 2: Convert to fraction form
    21,621.04/32,443.72 = 9,935.18/x
  3. Step 3: Cross multiply
    21,621.04x = 32,443.72 × 9,935.18
  4. Step 4: Simplify right side
    21,621.04x = 322,334,198.07
  5. Step 5: Solve for x
    x = 322,334,198.07/21,621.04
  6. Step 6: Final answer
    x = 14,908.36

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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.