Home / 27,945.05-38,537.81-18,368.02

Finding the Fourth Proportional to 27,945.05, 38,537.81 and 18,368.02

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Solution

The fourth proportional to 27,945.05, 38,537.81 and 18,368.02 is: 25,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.05 : 38,537.81 = 18,368.02 : x
  2. Step 2: Convert to fraction form
    27,945.05/38,537.81 = 18,368.02/x
  3. Step 3: Cross multiply
    27,945.05x = 38,537.81 × 18,368.02
  4. Step 4: Simplify right side
    27,945.05x = 707,862,980.31
  5. Step 5: Solve for x
    x = 707,862,980.31/27,945.05
  6. Step 6: Final answer
    x = 25,330.53

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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.