Home / 39,180.78-58,770.99-14,220.77

Finding the Fourth Proportional to 39,180.78, 58,770.99 and 14,220.77

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Solution

The fourth proportional to 39,180.78, 58,770.99 and 14,220.77 is: 21,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.78 : 58,770.99 = 14,220.77 : x
  2. Step 2: Convert to fraction form
    39,180.78/58,770.99 = 14,220.77/x
  3. Step 3: Cross multiply
    39,180.78x = 58,770.99 × 14,220.77
  4. Step 4: Simplify right side
    39,180.78x = 835,768,437.61
  5. Step 5: Solve for x
    x = 835,768,437.61/39,180.78
  6. Step 6: Final answer
    x = 21,331.08

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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.