Home / 21,623.81-32,439.29-6,630.56

Finding the Fourth Proportional to 21,623.81, 32,439.29 and 6,630.56

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Solution

The fourth proportional to 21,623.81, 32,439.29 and 6,630.56 is: 9,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.81 : 32,439.29 = 6,630.56 : x
  2. Step 2: Convert to fraction form
    21,623.81/32,439.29 = 6,630.56/x
  3. Step 3: Cross multiply
    21,623.81x = 32,439.29 × 6,630.56
  4. Step 4: Simplify right side
    21,623.81x = 215,090,585.00
  5. Step 5: Solve for x
    x = 215,090,585.00/21,623.81
  6. Step 6: Final answer
    x = 9,946.93

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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.