Home / 21,567.77-32,310.19-13,223.45

Finding the Fourth Proportional to 21,567.77, 32,310.19 and 13,223.45

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Solution

The fourth proportional to 21,567.77, 32,310.19 and 13,223.45 is: 19,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.77 : 32,310.19 = 13,223.45 : x
  2. Step 2: Convert to fraction form
    21,567.77/32,310.19 = 13,223.45/x
  3. Step 3: Cross multiply
    21,567.77x = 32,310.19 × 13,223.45
  4. Step 4: Simplify right side
    21,567.77x = 427,252,279.26
  5. Step 5: Solve for x
    x = 427,252,279.26/21,567.77
  6. Step 6: Final answer
    x = 19,809.76

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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.