Home / 25,690.48-35,454.21-15,617.28

Finding the Fourth Proportional to 25,690.48, 35,454.21 and 15,617.28

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Solution

The fourth proportional to 25,690.48, 35,454.21 and 15,617.28 is: 21,552.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.48 : 35,454.21 = 15,617.28 : x
  2. Step 2: Convert to fraction form
    25,690.48/35,454.21 = 15,617.28/x
  3. Step 3: Cross multiply
    25,690.48x = 35,454.21 × 15,617.28
  4. Step 4: Simplify right side
    25,690.48x = 553,698,324.75
  5. Step 5: Solve for x
    x = 553,698,324.75/25,690.48
  6. Step 6: Final answer
    x = 21,552.67

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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.