Home / 39,431.00-54,415.52-21,526.69

Finding the Fourth Proportional to 39,431.00, 54,415.52 and 21,526.69

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Solution

The fourth proportional to 39,431.00, 54,415.52 and 21,526.69 is: 29,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.00 : 54,415.52 = 21,526.69 : x
  2. Step 2: Convert to fraction form
    39,431.00/54,415.52 = 21,526.69/x
  3. Step 3: Cross multiply
    39,431.00x = 54,415.52 × 21,526.69
  4. Step 4: Simplify right side
    39,431.00x = 1,171,385,876.81
  5. Step 5: Solve for x
    x = 1,171,385,876.81/39,431.00
  6. Step 6: Final answer
    x = 29,707.23

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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.