Home / 20,023.61-27,603.10-15,761.01

Finding the Fourth Proportional to 20,023.61, 27,603.10 and 15,761.01

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Solution

The fourth proportional to 20,023.61, 27,603.10 and 15,761.01 is: 21,726.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.61 : 27,603.10 = 15,761.01 : x
  2. Step 2: Convert to fraction form
    20,023.61/27,603.10 = 15,761.01/x
  3. Step 3: Cross multiply
    20,023.61x = 27,603.10 × 15,761.01
  4. Step 4: Simplify right side
    20,023.61x = 435,052,707.24
  5. Step 5: Solve for x
    x = 435,052,707.24/20,023.61
  6. Step 6: Final answer
    x = 21,726.99

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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.