Home / 23,178.88-31,985.58-13,106.74

Finding the Fourth Proportional to 23,178.88, 31,985.58 and 13,106.74

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Solution

The fourth proportional to 23,178.88, 31,985.58 and 13,106.74 is: 18,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.88 : 31,985.58 = 13,106.74 : x
  2. Step 2: Convert to fraction form
    23,178.88/31,985.58 = 13,106.74/x
  3. Step 3: Cross multiply
    23,178.88x = 31,985.58 × 13,106.74
  4. Step 4: Simplify right side
    23,178.88x = 419,226,680.81
  5. Step 5: Solve for x
    x = 419,226,680.81/23,178.88
  6. Step 6: Final answer
    x = 18,086.58

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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.