Home / 28,620.05-39,461.34-18,544.82

Finding the Fourth Proportional to 28,620.05, 39,461.34 and 18,544.82

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Solution

The fourth proportional to 28,620.05, 39,461.34 and 18,544.82 is: 25,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.05 : 39,461.34 = 18,544.82 : x
  2. Step 2: Convert to fraction form
    28,620.05/39,461.34 = 18,544.82/x
  3. Step 3: Cross multiply
    28,620.05x = 39,461.34 × 18,544.82
  4. Step 4: Simplify right side
    28,620.05x = 731,803,319.50
  5. Step 5: Solve for x
    x = 731,803,319.50/28,620.05
  6. Step 6: Final answer
    x = 25,569.60

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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.