Home / 28,004.40-42,007.77-13,025.57

Finding the Fourth Proportional to 28,004.40, 42,007.77 and 13,025.57

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Solution

The fourth proportional to 28,004.40, 42,007.77 and 13,025.57 is: 19,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.40 : 42,007.77 = 13,025.57 : x
  2. Step 2: Convert to fraction form
    28,004.40/42,007.77 = 13,025.57/x
  3. Step 3: Cross multiply
    28,004.40x = 42,007.77 × 13,025.57
  4. Step 4: Simplify right side
    28,004.40x = 547,175,148.68
  5. Step 5: Solve for x
    x = 547,175,148.68/28,004.40
  6. Step 6: Final answer
    x = 19,538.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.