Home / 39,705.28-54,783.06-23,778.40

Finding the Fourth Proportional to 39,705.28, 54,783.06 and 23,778.40

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Solution

The fourth proportional to 39,705.28, 54,783.06 and 23,778.40 is: 32,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.28 : 54,783.06 = 23,778.40 : x
  2. Step 2: Convert to fraction form
    39,705.28/54,783.06 = 23,778.40/x
  3. Step 3: Cross multiply
    39,705.28x = 54,783.06 × 23,778.40
  4. Step 4: Simplify right side
    39,705.28x = 1,302,653,513.90
  5. Step 5: Solve for x
    x = 1,302,653,513.90/39,705.28
  6. Step 6: Final answer
    x = 32,808.07

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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.