Home / 28,984.32-39,996.45-16,235.28

Finding the Fourth Proportional to 28,984.32, 39,996.45 and 16,235.28

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Solution

The fourth proportional to 28,984.32, 39,996.45 and 16,235.28 is: 22,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.32 : 39,996.45 = 16,235.28 : x
  2. Step 2: Convert to fraction form
    28,984.32/39,996.45 = 16,235.28/x
  3. Step 3: Cross multiply
    28,984.32x = 39,996.45 × 16,235.28
  4. Step 4: Simplify right side
    28,984.32x = 649,353,564.76
  5. Step 5: Solve for x
    x = 649,353,564.76/28,984.32
  6. Step 6: Final answer
    x = 22,403.62

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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.