Home / 21,700.29-32,550.34-9,218.40

Finding the Fourth Proportional to 21,700.29, 32,550.34 and 9,218.40

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Solution

The fourth proportional to 21,700.29, 32,550.34 and 9,218.40 is: 13,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.29 : 32,550.34 = 9,218.40 : x
  2. Step 2: Convert to fraction form
    21,700.29/32,550.34 = 9,218.40/x
  3. Step 3: Cross multiply
    21,700.29x = 32,550.34 × 9,218.40
  4. Step 4: Simplify right side
    21,700.29x = 300,062,054.26
  5. Step 5: Solve for x
    x = 300,062,054.26/21,700.29
  6. Step 6: Final answer
    x = 13,827.56

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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.