Home / 23,000.84-31,740.24-12,929.72

Finding the Fourth Proportional to 23,000.84, 31,740.24 and 12,929.72

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Solution

The fourth proportional to 23,000.84, 31,740.24 and 12,929.72 is: 17,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,000.84 : 31,740.24 = 12,929.72 : x
  2. Step 2: Convert to fraction form
    23,000.84/31,740.24 = 12,929.72/x
  3. Step 3: Cross multiply
    23,000.84x = 31,740.24 × 12,929.72
  4. Step 4: Simplify right side
    23,000.84x = 410,392,415.93
  5. Step 5: Solve for x
    x = 410,392,415.93/23,000.84
  6. Step 6: Final answer
    x = 17,842.50

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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.