Home / 28,980.36-39,994.40-16,232.79

Finding the Fourth Proportional to 28,980.36, 39,994.40 and 16,232.79

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Solution

The fourth proportional to 28,980.36, 39,994.40 and 16,232.79 is: 22,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.36 : 39,994.40 = 16,232.79 : x
  2. Step 2: Convert to fraction form
    28,980.36/39,994.40 = 16,232.79/x
  3. Step 3: Cross multiply
    28,980.36x = 39,994.40 × 16,232.79
  4. Step 4: Simplify right side
    28,980.36x = 649,220,765.19
  5. Step 5: Solve for x
    x = 649,220,765.19/28,980.36
  6. Step 6: Final answer
    x = 22,402.10

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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.