Home / 21,259.16-29,337.50-11,699.62

Finding the Fourth Proportional to 21,259.16, 29,337.50 and 11,699.62

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Solution

The fourth proportional to 21,259.16, 29,337.50 and 11,699.62 is: 16,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.16 : 29,337.50 = 11,699.62 : x
  2. Step 2: Convert to fraction form
    21,259.16/29,337.50 = 11,699.62/x
  3. Step 3: Cross multiply
    21,259.16x = 29,337.50 × 11,699.62
  4. Step 4: Simplify right side
    21,259.16x = 343,237,601.75
  5. Step 5: Solve for x
    x = 343,237,601.75/21,259.16
  6. Step 6: Final answer
    x = 16,145.40

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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.