Home / 25,155.12-37,740.90-12,005.76

Finding the Fourth Proportional to 25,155.12, 37,740.90 and 12,005.76

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Solution

The fourth proportional to 25,155.12, 37,740.90 and 12,005.76 is: 18,012.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.12 : 37,740.90 = 12,005.76 : x
  2. Step 2: Convert to fraction form
    25,155.12/37,740.90 = 12,005.76/x
  3. Step 3: Cross multiply
    25,155.12x = 37,740.90 × 12,005.76
  4. Step 4: Simplify right side
    25,155.12x = 453,108,187.58
  5. Step 5: Solve for x
    x = 453,108,187.58/25,155.12
  6. Step 6: Final answer
    x = 18,012.56

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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.