Home / 18,027.59-26,988.13-13,316.31

Finding the Fourth Proportional to 18,027.59, 26,988.13 and 13,316.31

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Solution

The fourth proportional to 18,027.59, 26,988.13 and 13,316.31 is: 19,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.59 : 26,988.13 = 13,316.31 : x
  2. Step 2: Convert to fraction form
    18,027.59/26,988.13 = 13,316.31/x
  3. Step 3: Cross multiply
    18,027.59x = 26,988.13 × 13,316.31
  4. Step 4: Simplify right side
    18,027.59x = 359,382,322.05
  5. Step 5: Solve for x
    x = 359,382,322.05/18,027.59
  6. Step 6: Final answer
    x = 19,935.13

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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.