Home / 25,435.62-38,139.08-10,438.60

Finding the Fourth Proportional to 25,435.62, 38,139.08 and 10,438.60

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Solution

The fourth proportional to 25,435.62, 38,139.08 and 10,438.60 is: 15,652.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,435.62 : 38,139.08 = 10,438.60 : x
  2. Step 2: Convert to fraction form
    25,435.62/38,139.08 = 10,438.60/x
  3. Step 3: Cross multiply
    25,435.62x = 38,139.08 × 10,438.60
  4. Step 4: Simplify right side
    25,435.62x = 398,118,600.49
  5. Step 5: Solve for x
    x = 398,118,600.49/25,435.62
  6. Step 6: Final answer
    x = 15,652.01

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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.