Home / 39,507.35-59,298.08-20,801.21

Finding the Fourth Proportional to 39,507.35, 59,298.08 and 20,801.21

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Solution

The fourth proportional to 39,507.35, 59,298.08 and 20,801.21 is: 31,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,507.35 : 59,298.08 = 20,801.21 : x
  2. Step 2: Convert to fraction form
    39,507.35/59,298.08 = 20,801.21/x
  3. Step 3: Cross multiply
    39,507.35x = 59,298.08 × 20,801.21
  4. Step 4: Simplify right side
    39,507.35x = 1,233,471,414.18
  5. Step 5: Solve for x
    x = 1,233,471,414.18/39,507.35
  6. Step 6: Final answer
    x = 31,221.32

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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.