Home / 20,345.23-30,533.47-9,104.05

Finding the Fourth Proportional to 20,345.23, 30,533.47 and 9,104.05

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Solution

The fourth proportional to 20,345.23, 30,533.47 and 9,104.05 is: 13,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.23 : 30,533.47 = 9,104.05 : x
  2. Step 2: Convert to fraction form
    20,345.23/30,533.47 = 9,104.05/x
  3. Step 3: Cross multiply
    20,345.23x = 30,533.47 × 9,104.05
  4. Step 4: Simplify right side
    20,345.23x = 277,978,138.46
  5. Step 5: Solve for x
    x = 277,978,138.46/20,345.23
  6. Step 6: Final answer
    x = 13,663.06

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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.