Home / 23,490.45-32,416.65-12,879.90

Finding the Fourth Proportional to 23,490.45, 32,416.65 and 12,879.90

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Solution

The fourth proportional to 23,490.45, 32,416.65 and 12,879.90 is: 17,774.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.45 : 32,416.65 = 12,879.90 : x
  2. Step 2: Convert to fraction form
    23,490.45/32,416.65 = 12,879.90/x
  3. Step 3: Cross multiply
    23,490.45x = 32,416.65 × 12,879.90
  4. Step 4: Simplify right side
    23,490.45x = 417,523,210.34
  5. Step 5: Solve for x
    x = 417,523,210.34/23,490.45
  6. Step 6: Final answer
    x = 17,774.17

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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.