Home / 23,119.51-31,904.94-12,509.12

Finding the Fourth Proportional to 23,119.51, 31,904.94 and 12,509.12

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Solution

The fourth proportional to 23,119.51, 31,904.94 and 12,509.12 is: 17,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.51 : 31,904.94 = 12,509.12 : x
  2. Step 2: Convert to fraction form
    23,119.51/31,904.94 = 12,509.12/x
  3. Step 3: Cross multiply
    23,119.51x = 31,904.94 × 12,509.12
  4. Step 4: Simplify right side
    23,119.51x = 399,102,599.90
  5. Step 5: Solve for x
    x = 399,102,599.90/23,119.51
  6. Step 6: Final answer
    x = 17,262.59

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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.