Home / 39,120.58-58,580.70-21,570.94

Finding the Fourth Proportional to 39,120.58, 58,580.70 and 21,570.94

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Solution

The fourth proportional to 39,120.58, 58,580.70 and 21,570.94 is: 32,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.58 : 58,580.70 = 21,570.94 : x
  2. Step 2: Convert to fraction form
    39,120.58/58,580.70 = 21,570.94/x
  3. Step 3: Cross multiply
    39,120.58x = 58,580.70 × 21,570.94
  4. Step 4: Simplify right side
    39,120.58x = 1,263,640,764.86
  5. Step 5: Solve for x
    x = 1,263,640,764.86/39,120.58
  6. Step 6: Final answer
    x = 32,301.18

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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.