Home / 20,130.56-30,205.88-9,045.17

Finding the Fourth Proportional to 20,130.56, 30,205.88 and 9,045.17

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Solution

The fourth proportional to 20,130.56, 30,205.88 and 9,045.17 is: 13,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.56 : 30,205.88 = 9,045.17 : x
  2. Step 2: Convert to fraction form
    20,130.56/30,205.88 = 9,045.17/x
  3. Step 3: Cross multiply
    20,130.56x = 30,205.88 × 9,045.17
  4. Step 4: Simplify right side
    20,130.56x = 273,217,274.37
  5. Step 5: Solve for x
    x = 273,217,274.37/20,130.56
  6. Step 6: Final answer
    x = 13,572.26

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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.