Home / 28,985.22-39,910.04-22,637.46

Finding the Fourth Proportional to 28,985.22, 39,910.04 and 22,637.46

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Solution

The fourth proportional to 28,985.22, 39,910.04 and 22,637.46 is: 31,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.22 : 39,910.04 = 22,637.46 : x
  2. Step 2: Convert to fraction form
    28,985.22/39,910.04 = 22,637.46/x
  3. Step 3: Cross multiply
    28,985.22x = 39,910.04 × 22,637.46
  4. Step 4: Simplify right side
    28,985.22x = 903,461,934.10
  5. Step 5: Solve for x
    x = 903,461,934.10/28,985.22
  6. Step 6: Final answer
    x = 31,169.75

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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.