Home / 28,709.76-39,623.16-16,134.50

Finding the Fourth Proportional to 28,709.76, 39,623.16 and 16,134.50

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Solution

The fourth proportional to 28,709.76, 39,623.16 and 16,134.50 is: 22,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.76 : 39,623.16 = 16,134.50 : x
  2. Step 2: Convert to fraction form
    28,709.76/39,623.16 = 16,134.50/x
  3. Step 3: Cross multiply
    28,709.76x = 39,623.16 × 16,134.50
  4. Step 4: Simplify right side
    28,709.76x = 639,299,875.02
  5. Step 5: Solve for x
    x = 639,299,875.02/28,709.76
  6. Step 6: Final answer
    x = 22,267.68

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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.