Home / 28,962.87-39,969.55-16,215.69

Finding the Fourth Proportional to 28,962.87, 39,969.55 and 16,215.69

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Solution

The fourth proportional to 28,962.87, 39,969.55 and 16,215.69 is: 22,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.87 : 39,969.55 = 16,215.69 : x
  2. Step 2: Convert to fraction form
    28,962.87/39,969.55 = 16,215.69/x
  3. Step 3: Cross multiply
    28,962.87x = 39,969.55 × 16,215.69
  4. Step 4: Simplify right side
    28,962.87x = 648,134,002.39
  5. Step 5: Solve for x
    x = 648,134,002.39/28,962.87
  6. Step 6: Final answer
    x = 22,378.10

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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.