Home / 30,902.67-42,644.93-18,798.66

Finding the Fourth Proportional to 30,902.67, 42,644.93 and 18,798.66

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Solution

The fourth proportional to 30,902.67, 42,644.93 and 18,798.66 is: 25,941.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902.67 : 42,644.93 = 18,798.66 : x
  2. Step 2: Convert to fraction form
    30,902.67/42,644.93 = 18,798.66/x
  3. Step 3: Cross multiply
    30,902.67x = 42,644.93 × 18,798.66
  4. Step 4: Simplify right side
    30,902.67x = 801,667,445.80
  5. Step 5: Solve for x
    x = 801,667,445.80/30,902.67
  6. Step 6: Final answer
    x = 25,941.69

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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.