Home / 27,973.45-38,603.27-15,398.20

Finding the Fourth Proportional to 27,973.45, 38,603.27 and 15,398.20

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Solution

The fourth proportional to 27,973.45, 38,603.27 and 15,398.20 is: 21,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,973.45 : 38,603.27 = 15,398.20 : x
  2. Step 2: Convert to fraction form
    27,973.45/38,603.27 = 15,398.20/x
  3. Step 3: Cross multiply
    27,973.45x = 38,603.27 × 15,398.20
  4. Step 4: Simplify right side
    27,973.45x = 594,420,602.11
  5. Step 5: Solve for x
    x = 594,420,602.11/27,973.45
  6. Step 6: Final answer
    x = 21,249.46

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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.