Home / 23,490.04-32,415.78-12,879.76

Finding the Fourth Proportional to 23,490.04, 32,415.78 and 12,879.76

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Solution

The fourth proportional to 23,490.04, 32,415.78 and 12,879.76 is: 17,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.04 : 32,415.78 = 12,879.76 : x
  2. Step 2: Convert to fraction form
    23,490.04/32,415.78 = 12,879.76/x
  3. Step 3: Cross multiply
    23,490.04x = 32,415.78 × 12,879.76
  4. Step 4: Simplify right side
    23,490.04x = 417,507,466.61
  5. Step 5: Solve for x
    x = 417,507,466.61/23,490.04
  6. Step 6: Final answer
    x = 17,773.81

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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.