Home / 20,603.12-30,901.41-6,561.32

Finding the Fourth Proportional to 20,603.12, 30,901.41 and 6,561.32

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Solution

The fourth proportional to 20,603.12, 30,901.41 and 6,561.32 is: 9,840.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.12 : 30,901.41 = 6,561.32 : x
  2. Step 2: Convert to fraction form
    20,603.12/30,901.41 = 6,561.32/x
  3. Step 3: Cross multiply
    20,603.12x = 30,901.41 × 6,561.32
  4. Step 4: Simplify right side
    20,603.12x = 202,754,039.46
  5. Step 5: Solve for x
    x = 202,754,039.46/20,603.12
  6. Step 6: Final answer
    x = 9,840.94

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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.