Home / 30,108.51-45,146.17-10,370.79

Finding the Fourth Proportional to 30,108.51, 45,146.17 and 10,370.79

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Solution

The fourth proportional to 30,108.51, 45,146.17 and 10,370.79 is: 15,550.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108.51 : 45,146.17 = 10,370.79 : x
  2. Step 2: Convert to fraction form
    30,108.51/45,146.17 = 10,370.79/x
  3. Step 3: Cross multiply
    30,108.51x = 45,146.17 × 10,370.79
  4. Step 4: Simplify right side
    30,108.51x = 468,201,448.37
  5. Step 5: Solve for x
    x = 468,201,448.37/30,108.51
  6. Step 6: Final answer
    x = 15,550.47

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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.