Home / 28,905.76-43,364.68-16,431.52

Finding the Fourth Proportional to 28,905.76, 43,364.68 and 16,431.52

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Solution

The fourth proportional to 28,905.76, 43,364.68 and 16,431.52 is: 24,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.76 : 43,364.68 = 16,431.52 : x
  2. Step 2: Convert to fraction form
    28,905.76/43,364.68 = 16,431.52/x
  3. Step 3: Cross multiply
    28,905.76x = 43,364.68 × 16,431.52
  4. Step 4: Simplify right side
    28,905.76x = 712,547,606.71
  5. Step 5: Solve for x
    x = 712,547,606.71/28,905.76
  6. Step 6: Final answer
    x = 24,650.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.