Home / 21,731.36-32,591.36-7,690.01

Finding the Fourth Proportional to 21,731.36, 32,591.36 and 7,690.01

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Solution

The fourth proportional to 21,731.36, 32,591.36 and 7,690.01 is: 11,533.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.36 : 32,591.36 = 7,690.01 : x
  2. Step 2: Convert to fraction form
    21,731.36/32,591.36 = 7,690.01/x
  3. Step 3: Cross multiply
    21,731.36x = 32,591.36 × 7,690.01
  4. Step 4: Simplify right side
    21,731.36x = 250,627,682.91
  5. Step 5: Solve for x
    x = 250,627,682.91/21,731.36
  6. Step 6: Final answer
    x = 11,533.00

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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.