Home / 21,090.61-29,104.23-12,594.16

Finding the Fourth Proportional to 21,090.61, 29,104.23 and 12,594.16

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Solution

The fourth proportional to 21,090.61, 29,104.23 and 12,594.16 is: 17,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.61 : 29,104.23 = 12,594.16 : x
  2. Step 2: Convert to fraction form
    21,090.61/29,104.23 = 12,594.16/x
  3. Step 3: Cross multiply
    21,090.61x = 29,104.23 × 12,594.16
  4. Step 4: Simplify right side
    21,090.61x = 366,543,329.30
  5. Step 5: Solve for x
    x = 366,543,329.30/21,090.61
  6. Step 6: Final answer
    x = 17,379.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.