Home / 39,503.86-54,513.12-21,595.30

Finding the Fourth Proportional to 39,503.86, 54,513.12 and 21,595.30

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Solution

The fourth proportional to 39,503.86, 54,513.12 and 21,595.30 is: 29,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,503.86 : 54,513.12 = 21,595.30 : x
  2. Step 2: Convert to fraction form
    39,503.86/54,513.12 = 21,595.30/x
  3. Step 3: Cross multiply
    39,503.86x = 54,513.12 × 21,595.30
  4. Step 4: Simplify right side
    39,503.86x = 1,177,227,180.34
  5. Step 5: Solve for x
    x = 1,177,227,180.34/39,503.86
  6. Step 6: Final answer
    x = 29,800.31

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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.