Home / 25,535.40-38,303.10-8,005.20

Finding the Fourth Proportional to 25,535.40, 38,303.10 and 8,005.20

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Solution

The fourth proportional to 25,535.40, 38,303.10 and 8,005.20 is: 12,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,535.40 : 38,303.10 = 8,005.20 : x
  2. Step 2: Convert to fraction form
    25,535.40/38,303.10 = 8,005.20/x
  3. Step 3: Cross multiply
    25,535.40x = 38,303.10 × 8,005.20
  4. Step 4: Simplify right side
    25,535.40x = 306,623,976.12
  5. Step 5: Solve for x
    x = 306,623,976.12/25,535.40
  6. Step 6: Final answer
    x = 12,007.80

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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.