Home / 23,119.19-31,904.34-12,508.90

Finding the Fourth Proportional to 23,119.19, 31,904.34 and 12,508.90

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Solution

The fourth proportional to 23,119.19, 31,904.34 and 12,508.90 is: 17,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.19 : 31,904.34 = 12,508.90 : x
  2. Step 2: Convert to fraction form
    23,119.19/31,904.34 = 12,508.90/x
  3. Step 3: Cross multiply
    23,119.19x = 31,904.34 × 12,508.90
  4. Step 4: Simplify right side
    23,119.19x = 399,088,071.96
  5. Step 5: Solve for x
    x = 399,088,071.96/23,119.19
  6. Step 6: Final answer
    x = 17,262.20

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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.