Home / 28,880.08-39,861.12-16,943.92

Finding the Fourth Proportional to 28,880.08, 39,861.12 and 16,943.92

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Solution

The fourth proportional to 28,880.08, 39,861.12 and 16,943.92 is: 23,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.08 : 39,861.12 = 16,943.92 : x
  2. Step 2: Convert to fraction form
    28,880.08/39,861.12 = 16,943.92/x
  3. Step 3: Cross multiply
    28,880.08x = 39,861.12 × 16,943.92
  4. Step 4: Simplify right side
    28,880.08x = 675,403,628.39
  5. Step 5: Solve for x
    x = 675,403,628.39/28,880.08
  6. Step 6: Final answer
    x = 23,386.49

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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.