Home / 39,538.60-59,288.70-21,989.80

Finding the Fourth Proportional to 39,538.60, 59,288.70 and 21,989.80

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Solution

The fourth proportional to 39,538.60, 59,288.70 and 21,989.80 is: 32,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,538.60 : 59,288.70 = 21,989.80 : x
  2. Step 2: Convert to fraction form
    39,538.60/59,288.70 = 21,989.80/x
  3. Step 3: Cross multiply
    39,538.60x = 59,288.70 × 21,989.80
  4. Step 4: Simplify right side
    39,538.60x = 1,303,746,655.26
  5. Step 5: Solve for x
    x = 1,303,746,655.26/39,538.60
  6. Step 6: Final answer
    x = 32,974.02

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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.