Home / 21,411.79-32,115.37-5,618.41

Finding the Fourth Proportional to 21,411.79, 32,115.37 and 5,618.41

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Solution

The fourth proportional to 21,411.79, 32,115.37 and 5,618.41 is: 8,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.79 : 32,115.37 = 5,618.41 : x
  2. Step 2: Convert to fraction form
    21,411.79/32,115.37 = 5,618.41/x
  3. Step 3: Cross multiply
    21,411.79x = 32,115.37 × 5,618.41
  4. Step 4: Simplify right side
    21,411.79x = 180,437,242.70
  5. Step 5: Solve for x
    x = 180,437,242.70/21,411.79
  6. Step 6: Final answer
    x = 8,427.01

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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.