Home / 23,490.40-32,416.05-12,879.67

Finding the Fourth Proportional to 23,490.40, 32,416.05 and 12,879.67

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Solution

The fourth proportional to 23,490.40, 32,416.05 and 12,879.67 is: 17,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.40 : 32,416.05 = 12,879.67 : x
  2. Step 2: Convert to fraction form
    23,490.40/32,416.05 = 12,879.67/x
  3. Step 3: Cross multiply
    23,490.40x = 32,416.05 × 12,879.67
  4. Step 4: Simplify right side
    23,490.40x = 417,508,026.70
  5. Step 5: Solve for x
    x = 417,508,026.70/23,490.40
  6. Step 6: Final answer
    x = 17,773.56

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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.