Home / 30,750.54-42,427.92-18,809.52

Finding the Fourth Proportional to 30,750.54, 42,427.92 and 18,809.52

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Solution

The fourth proportional to 30,750.54, 42,427.92 and 18,809.52 is: 25,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.54 : 42,427.92 = 18,809.52 : x
  2. Step 2: Convert to fraction form
    30,750.54/42,427.92 = 18,809.52/x
  3. Step 3: Cross multiply
    30,750.54x = 42,427.92 × 18,809.52
  4. Step 4: Simplify right side
    30,750.54x = 798,048,809.80
  5. Step 5: Solve for x
    x = 798,048,809.80/30,750.54
  6. Step 6: Final answer
    x = 25,952.35

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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.