Home / 28,642.16-42,945.99-12,844.34

Finding the Fourth Proportional to 28,642.16, 42,945.99 and 12,844.34

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Solution

The fourth proportional to 28,642.16, 42,945.99 and 12,844.34 is: 19,258.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,642.16 : 42,945.99 = 12,844.34 : x
  2. Step 2: Convert to fraction form
    28,642.16/42,945.99 = 12,844.34/x
  3. Step 3: Cross multiply
    28,642.16x = 42,945.99 × 12,844.34
  4. Step 4: Simplify right side
    28,642.16x = 551,612,795.35
  5. Step 5: Solve for x
    x = 551,612,795.35/28,642.16
  6. Step 6: Final answer
    x = 19,258.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.