Home / 21,715.48-32,578.08-8,567.56

Finding the Fourth Proportional to 21,715.48, 32,578.08 and 8,567.56

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Solution

The fourth proportional to 21,715.48, 32,578.08 and 8,567.56 is: 12,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.48 : 32,578.08 = 8,567.56 : x
  2. Step 2: Convert to fraction form
    21,715.48/32,578.08 = 8,567.56/x
  3. Step 3: Cross multiply
    21,715.48x = 32,578.08 × 8,567.56
  4. Step 4: Simplify right side
    21,715.48x = 279,114,655.08
  5. Step 5: Solve for x
    x = 279,114,655.08/21,715.48
  6. Step 6: Final answer
    x = 12,853.26

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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.