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Finding the Fourth Proportional to 39,509.79, 59,284.73 and 21,754.99

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Solution

The fourth proportional to 39,509.79, 59,284.73 and 21,754.99 is: 32,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.79 : 59,284.73 = 21,754.99 : x
  2. Step 2: Convert to fraction form
    39,509.79/59,284.73 = 21,754.99/x
  3. Step 3: Cross multiply
    39,509.79x = 59,284.73 × 21,754.99
  4. Step 4: Simplify right side
    39,509.79x = 1,289,738,708.30
  5. Step 5: Solve for x
    x = 1,289,738,708.30/39,509.79
  6. Step 6: Final answer
    x = 32,643.52

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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.