Home / 28,403.58-42,605.41-15,339.03

Finding the Fourth Proportional to 28,403.58, 42,605.41 and 15,339.03

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Solution

The fourth proportional to 28,403.58, 42,605.41 and 15,339.03 is: 23,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.58 : 42,605.41 = 15,339.03 : x
  2. Step 2: Convert to fraction form
    28,403.58/42,605.41 = 15,339.03/x
  3. Step 3: Cross multiply
    28,403.58x = 42,605.41 × 15,339.03
  4. Step 4: Simplify right side
    28,403.58x = 653,525,662.15
  5. Step 5: Solve for x
    x = 653,525,662.15/28,403.58
  6. Step 6: Final answer
    x = 23,008.57

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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.