Home / 47,257.89-65,215.86-28,401.09

Finding the Fourth Proportional to 47,257.89, 65,215.86 and 28,401.09

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Solution

The fourth proportional to 47,257.89, 65,215.86 and 28,401.09 is: 39,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,257.89 : 65,215.86 = 28,401.09 : x
  2. Step 2: Convert to fraction form
    47,257.89/65,215.86 = 28,401.09/x
  3. Step 3: Cross multiply
    47,257.89x = 65,215.86 × 28,401.09
  4. Step 4: Simplify right side
    47,257.89x = 1,852,201,509.29
  5. Step 5: Solve for x
    x = 1,852,201,509.29/47,257.89
  6. Step 6: Final answer
    x = 39,193.49

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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.