Home / 28,362.10-39,139.05-17,757.58

Finding the Fourth Proportional to 28,362.10, 39,139.05 and 17,757.58

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Solution

The fourth proportional to 28,362.10, 39,139.05 and 17,757.58 is: 24,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.10 : 39,139.05 = 17,757.58 : x
  2. Step 2: Convert to fraction form
    28,362.10/39,139.05 = 17,757.58/x
  3. Step 3: Cross multiply
    28,362.10x = 39,139.05 × 17,757.58
  4. Step 4: Simplify right side
    28,362.10x = 695,014,811.50
  5. Step 5: Solve for x
    x = 695,014,811.50/28,362.10
  6. Step 6: Final answer
    x = 24,505.05

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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.