Home / 25,382.03-35,030.46-15,315.90

Finding the Fourth Proportional to 25,382.03, 35,030.46 and 15,315.90

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Solution

The fourth proportional to 25,382.03, 35,030.46 and 15,315.90 is: 21,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,382.03 : 35,030.46 = 15,315.90 : x
  2. Step 2: Convert to fraction form
    25,382.03/35,030.46 = 15,315.90/x
  3. Step 3: Cross multiply
    25,382.03x = 35,030.46 × 15,315.90
  4. Step 4: Simplify right side
    25,382.03x = 536,523,022.31
  5. Step 5: Solve for x
    x = 536,523,022.31/25,382.03
  6. Step 6: Final answer
    x = 21,137.91

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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.