Home / 23,215.43-32,039.28-13,145.64

Finding the Fourth Proportional to 23,215.43, 32,039.28 and 13,145.64

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Solution

The fourth proportional to 23,215.43, 32,039.28 and 13,145.64 is: 18,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,215.43 : 32,039.28 = 13,145.64 : x
  2. Step 2: Convert to fraction form
    23,215.43/32,039.28 = 13,145.64/x
  3. Step 3: Cross multiply
    23,215.43x = 32,039.28 × 13,145.64
  4. Step 4: Simplify right side
    23,215.43x = 421,176,900.81
  5. Step 5: Solve for x
    x = 421,176,900.81/23,215.43
  6. Step 6: Final answer
    x = 18,142.11

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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.