Home / 30,550.38-45,828.81-13,021.98

Finding the Fourth Proportional to 30,550.38, 45,828.81 and 13,021.98

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Solution

The fourth proportional to 30,550.38, 45,828.81 and 13,021.98 is: 19,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,550.38 : 45,828.81 = 13,021.98 : x
  2. Step 2: Convert to fraction form
    30,550.38/45,828.81 = 13,021.98/x
  3. Step 3: Cross multiply
    30,550.38x = 45,828.81 × 13,021.98
  4. Step 4: Simplify right side
    30,550.38x = 596,781,847.24
  5. Step 5: Solve for x
    x = 596,781,847.24/30,550.38
  6. Step 6: Final answer
    x = 19,534.35

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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.