Home / 31,002.54-42,783.48-16,855.32

Finding the Fourth Proportional to 31,002.54, 42,783.48 and 16,855.32

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Solution

The fourth proportional to 31,002.54, 42,783.48 and 16,855.32 is: 23,260.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,002.54 : 42,783.48 = 16,855.32 : x
  2. Step 2: Convert to fraction form
    31,002.54/42,783.48 = 16,855.32/x
  3. Step 3: Cross multiply
    31,002.54x = 42,783.48 × 16,855.32
  4. Step 4: Simplify right side
    31,002.54x = 721,129,246.11
  5. Step 5: Solve for x
    x = 721,129,246.11/31,002.54
  6. Step 6: Final answer
    x = 23,260.33

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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.