Home / 39,237.76-54,147.00-21,332.35

Finding the Fourth Proportional to 39,237.76, 54,147.00 and 21,332.35

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Solution

The fourth proportional to 39,237.76, 54,147.00 and 21,332.35 is: 29,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237.76 : 54,147.00 = 21,332.35 : x
  2. Step 2: Convert to fraction form
    39,237.76/54,147.00 = 21,332.35/x
  3. Step 3: Cross multiply
    39,237.76x = 54,147.00 × 21,332.35
  4. Step 4: Simplify right side
    39,237.76x = 1,155,082,783.14
  5. Step 5: Solve for x
    x = 1,155,082,783.14/39,237.76
  6. Step 6: Final answer
    x = 29,438.04

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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.