Home / 21,343.71-32,012.79-6,551.40

Finding the Fourth Proportional to 21,343.71, 32,012.79 and 6,551.40

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Solution

The fourth proportional to 21,343.71, 32,012.79 and 6,551.40 is: 9,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.71 : 32,012.79 = 6,551.40 : x
  2. Step 2: Convert to fraction form
    21,343.71/32,012.79 = 6,551.40/x
  3. Step 3: Cross multiply
    21,343.71x = 32,012.79 × 6,551.40
  4. Step 4: Simplify right side
    21,343.71x = 209,728,592.41
  5. Step 5: Solve for x
    x = 209,728,592.41/21,343.71
  6. Step 6: Final answer
    x = 9,826.25

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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.