Home / 28,811.88-39,730.14-22,752.09

Finding the Fourth Proportional to 28,811.88, 39,730.14 and 22,752.09

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Solution

The fourth proportional to 28,811.88, 39,730.14 and 22,752.09 is: 31,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.88 : 39,730.14 = 22,752.09 : x
  2. Step 2: Convert to fraction form
    28,811.88/39,730.14 = 22,752.09/x
  3. Step 3: Cross multiply
    28,811.88x = 39,730.14 × 22,752.09
  4. Step 4: Simplify right side
    28,811.88x = 903,943,720.99
  5. Step 5: Solve for x
    x = 903,943,720.99/28,811.88
  6. Step 6: Final answer
    x = 31,373.99

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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.