Home / 18,547.67-27,839.73-13,603.23

Finding the Fourth Proportional to 18,547.67, 27,839.73 and 13,603.23

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Solution

The fourth proportional to 18,547.67, 27,839.73 and 13,603.23 is: 20,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.67 : 27,839.73 = 13,603.23 : x
  2. Step 2: Convert to fraction form
    18,547.67/27,839.73 = 13,603.23/x
  3. Step 3: Cross multiply
    18,547.67x = 27,839.73 × 13,603.23
  4. Step 4: Simplify right side
    18,547.67x = 378,710,043.11
  5. Step 5: Solve for x
    x = 378,710,043.11/18,547.67
  6. Step 6: Final answer
    x = 20,418.21

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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.