Home / 25,439.16-38,158.74-7,904.28

Finding the Fourth Proportional to 25,439.16, 38,158.74 and 7,904.28

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Solution

The fourth proportional to 25,439.16, 38,158.74 and 7,904.28 is: 11,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.16 : 38,158.74 = 7,904.28 : x
  2. Step 2: Convert to fraction form
    25,439.16/38,158.74 = 7,904.28/x
  3. Step 3: Cross multiply
    25,439.16x = 38,158.74 × 7,904.28
  4. Step 4: Simplify right side
    25,439.16x = 301,617,365.41
  5. Step 5: Solve for x
    x = 301,617,365.41/25,439.16
  6. Step 6: Final answer
    x = 11,856.42

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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.