Home / 28,995.76-40,015.60-16,248.16

Finding the Fourth Proportional to 28,995.76, 40,015.60 and 16,248.16

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Solution

The fourth proportional to 28,995.76, 40,015.60 and 16,248.16 is: 22,423.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995.76 : 40,015.60 = 16,248.16 : x
  2. Step 2: Convert to fraction form
    28,995.76/40,015.60 = 16,248.16/x
  3. Step 3: Cross multiply
    28,995.76x = 40,015.60 × 16,248.16
  4. Step 4: Simplify right side
    28,995.76x = 650,179,871.30
  5. Step 5: Solve for x
    x = 650,179,871.30/28,995.76
  6. Step 6: Final answer
    x = 22,423.27

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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.