Home / 42,318.09-58,367.93-30,393.68

Finding the Fourth Proportional to 42,318.09, 58,367.93 and 30,393.68

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Solution

The fourth proportional to 42,318.09, 58,367.93 and 30,393.68 is: 41,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,318.09 : 58,367.93 = 30,393.68 : x
  2. Step 2: Convert to fraction form
    42,318.09/58,367.93 = 30,393.68/x
  3. Step 3: Cross multiply
    42,318.09x = 58,367.93 × 30,393.68
  4. Step 4: Simplify right side
    42,318.09x = 1,774,015,742.87
  5. Step 5: Solve for x
    x = 1,774,015,742.87/42,318.09
  6. Step 6: Final answer
    x = 41,920.98

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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.