Home / 39,535.16-54,557.70-21,630.12

Finding the Fourth Proportional to 39,535.16, 54,557.70 and 21,630.12

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Solution

The fourth proportional to 39,535.16, 54,557.70 and 21,630.12 is: 29,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,535.16 : 54,557.70 = 21,630.12 : x
  2. Step 2: Convert to fraction form
    39,535.16/54,557.70 = 21,630.12/x
  3. Step 3: Cross multiply
    39,535.16x = 54,557.70 × 21,630.12
  4. Step 4: Simplify right side
    39,535.16x = 1,180,089,597.92
  5. Step 5: Solve for x
    x = 1,180,089,597.92/39,535.16
  6. Step 6: Final answer
    x = 29,849.12

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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.