Home / 18,041.40-26,989.20-15,603.30

Finding the Fourth Proportional to 18,041.40, 26,989.20 and 15,603.30

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Solution

The fourth proportional to 18,041.40, 26,989.20 and 15,603.30 is: 23,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.40 : 26,989.20 = 15,603.30 : x
  2. Step 2: Convert to fraction form
    18,041.40/26,989.20 = 15,603.30/x
  3. Step 3: Cross multiply
    18,041.40x = 26,989.20 × 15,603.30
  4. Step 4: Simplify right side
    18,041.40x = 421,120,584.36
  5. Step 5: Solve for x
    x = 421,120,584.36/18,041.40
  6. Step 6: Final answer
    x = 23,341.90

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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.