Home / 28,341.68-39,070.57-18,765.53

Finding the Fourth Proportional to 28,341.68, 39,070.57 and 18,765.53

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Solution

The fourth proportional to 28,341.68, 39,070.57 and 18,765.53 is: 25,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.68 : 39,070.57 = 18,765.53 : x
  2. Step 2: Convert to fraction form
    28,341.68/39,070.57 = 18,765.53/x
  3. Step 3: Cross multiply
    28,341.68x = 39,070.57 × 18,765.53
  4. Step 4: Simplify right side
    28,341.68x = 733,179,664.27
  5. Step 5: Solve for x
    x = 733,179,664.27/28,341.68
  6. Step 6: Final answer
    x = 25,869.31

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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.