Home / 28,697.91-39,606.80-16,125.09

Finding the Fourth Proportional to 28,697.91, 39,606.80 and 16,125.09

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Solution

The fourth proportional to 28,697.91, 39,606.80 and 16,125.09 is: 22,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,697.91 : 39,606.80 = 16,125.09 : x
  2. Step 2: Convert to fraction form
    28,697.91/39,606.80 = 16,125.09/x
  3. Step 3: Cross multiply
    28,697.91x = 39,606.80 × 16,125.09
  4. Step 4: Simplify right side
    28,697.91x = 638,663,214.61
  5. Step 5: Solve for x
    x = 638,663,214.61/28,697.91
  6. Step 6: Final answer
    x = 22,254.69

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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.