Home / 28,503.12-39,324.71-18,444.28

Finding the Fourth Proportional to 28,503.12, 39,324.71 and 18,444.28

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Solution

The fourth proportional to 28,503.12, 39,324.71 and 18,444.28 is: 25,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.12 : 39,324.71 = 18,444.28 : x
  2. Step 2: Convert to fraction form
    28,503.12/39,324.71 = 18,444.28/x
  3. Step 3: Cross multiply
    28,503.12x = 39,324.71 × 18,444.28
  4. Step 4: Simplify right side
    28,503.12x = 725,315,869.94
  5. Step 5: Solve for x
    x = 725,315,869.94/28,503.12
  6. Step 6: Final answer
    x = 25,446.89

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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.