Home / 28,277.88-39,024.54-15,531.60

Finding the Fourth Proportional to 28,277.88, 39,024.54 and 15,531.60

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Solution

The fourth proportional to 28,277.88, 39,024.54 and 15,531.60 is: 21,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.88 : 39,024.54 = 15,531.60 : x
  2. Step 2: Convert to fraction form
    28,277.88/39,024.54 = 15,531.60/x
  3. Step 3: Cross multiply
    28,277.88x = 39,024.54 × 15,531.60
  4. Step 4: Simplify right side
    28,277.88x = 606,113,545.46
  5. Step 5: Solve for x
    x = 606,113,545.46/28,277.88
  6. Step 6: Final answer
    x = 21,434.19

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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.