Home / 21,681.91-32,515.95-6,887.37

Finding the Fourth Proportional to 21,681.91, 32,515.95 and 6,887.37

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Solution

The fourth proportional to 21,681.91, 32,515.95 and 6,887.37 is: 10,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.91 : 32,515.95 = 6,887.37 : x
  2. Step 2: Convert to fraction form
    21,681.91/32,515.95 = 6,887.37/x
  3. Step 3: Cross multiply
    21,681.91x = 32,515.95 × 6,887.37
  4. Step 4: Simplify right side
    21,681.91x = 223,949,378.55
  5. Step 5: Solve for x
    x = 223,949,378.55/21,681.91
  6. Step 6: Final answer
    x = 10,328.86

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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.