Home / 30,435.48-45,631.08-20,550.24

Finding the Fourth Proportional to 30,435.48, 45,631.08 and 20,550.24

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Solution

The fourth proportional to 30,435.48, 45,631.08 and 20,550.24 is: 30,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.48 : 45,631.08 = 20,550.24 : x
  2. Step 2: Convert to fraction form
    30,435.48/45,631.08 = 20,550.24/x
  3. Step 3: Cross multiply
    30,435.48x = 45,631.08 × 20,550.24
  4. Step 4: Simplify right side
    30,435.48x = 937,729,645.46
  5. Step 5: Solve for x
    x = 937,729,645.46/30,435.48
  6. Step 6: Final answer
    x = 30,810.41

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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.