Home / 21,935.40-32,807.10-19,612.20

Finding the Fourth Proportional to 21,935.40, 32,807.10 and 19,612.20

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Solution

The fourth proportional to 21,935.40, 32,807.10 and 19,612.20 is: 29,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.40 : 32,807.10 = 19,612.20 : x
  2. Step 2: Convert to fraction form
    21,935.40/32,807.10 = 19,612.20/x
  3. Step 3: Cross multiply
    21,935.40x = 32,807.10 × 19,612.20
  4. Step 4: Simplify right side
    21,935.40x = 643,419,406.62
  5. Step 5: Solve for x
    x = 643,419,406.62/21,935.40
  6. Step 6: Final answer
    x = 29,332.47

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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.