Home / 39,059.90-53,902.39-21,154.49

Finding the Fourth Proportional to 39,059.90, 53,902.39 and 21,154.49

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Solution

The fourth proportional to 39,059.90, 53,902.39 and 21,154.49 is: 29,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.90 : 53,902.39 = 21,154.49 : x
  2. Step 2: Convert to fraction form
    39,059.90/53,902.39 = 21,154.49/x
  3. Step 3: Cross multiply
    39,059.90x = 53,902.39 × 21,154.49
  4. Step 4: Simplify right side
    39,059.90x = 1,140,277,652.10
  5. Step 5: Solve for x
    x = 1,140,277,652.10/39,059.90
  6. Step 6: Final answer
    x = 29,193.05

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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.