Home / 21,426.34-29,567.18-11,993.08

Finding the Fourth Proportional to 21,426.34, 29,567.18 and 11,993.08

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Solution

The fourth proportional to 21,426.34, 29,567.18 and 11,993.08 is: 16,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.34 : 29,567.18 = 11,993.08 : x
  2. Step 2: Convert to fraction form
    21,426.34/29,567.18 = 11,993.08/x
  3. Step 3: Cross multiply
    21,426.34x = 29,567.18 × 11,993.08
  4. Step 4: Simplify right side
    21,426.34x = 354,601,555.11
  5. Step 5: Solve for x
    x = 354,601,555.11/21,426.34
  6. Step 6: Final answer
    x = 16,549.80

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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.