Home / 23,501.36-32,430.80-12,891.44

Finding the Fourth Proportional to 23,501.36, 32,430.80 and 12,891.44

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Solution

The fourth proportional to 23,501.36, 32,430.80 and 12,891.44 is: 17,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,501.36 : 32,430.80 = 12,891.44 : x
  2. Step 2: Convert to fraction form
    23,501.36/32,430.80 = 12,891.44/x
  3. Step 3: Cross multiply
    23,501.36x = 32,430.80 × 12,891.44
  4. Step 4: Simplify right side
    23,501.36x = 418,079,712.35
  5. Step 5: Solve for x
    x = 418,079,712.35/23,501.36
  6. Step 6: Final answer
    x = 17,789.60

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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.