Home / 30,146.81-41,603.69-22,579.79

Finding the Fourth Proportional to 30,146.81, 41,603.69 and 22,579.79

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Solution

The fourth proportional to 30,146.81, 41,603.69 and 22,579.79 is: 31,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.81 : 41,603.69 = 22,579.79 : x
  2. Step 2: Convert to fraction form
    30,146.81/41,603.69 = 22,579.79/x
  3. Step 3: Cross multiply
    30,146.81x = 41,603.69 × 22,579.79
  4. Step 4: Simplify right side
    30,146.81x = 939,402,431.86
  5. Step 5: Solve for x
    x = 939,402,431.86/30,146.81
  6. Step 6: Final answer
    x = 31,160.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.