Home / 30,927.96-42,690.65-18,180.92

Finding the Fourth Proportional to 30,927.96, 42,690.65 and 18,180.92

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Solution

The fourth proportional to 30,927.96, 42,690.65 and 18,180.92 is: 25,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927.96 : 42,690.65 = 18,180.92 : x
  2. Step 2: Convert to fraction form
    30,927.96/42,690.65 = 18,180.92/x
  3. Step 3: Cross multiply
    30,927.96x = 42,690.65 × 18,180.92
  4. Step 4: Simplify right side
    30,927.96x = 776,155,308.22
  5. Step 5: Solve for x
    x = 776,155,308.22/30,927.96
  6. Step 6: Final answer
    x = 25,095.59

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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.