Home / 30,837.89-42,555.43-17,225.57

Finding the Fourth Proportional to 30,837.89, 42,555.43 and 17,225.57

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Solution

The fourth proportional to 30,837.89, 42,555.43 and 17,225.57 is: 23,770.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.89 : 42,555.43 = 17,225.57 : x
  2. Step 2: Convert to fraction form
    30,837.89/42,555.43 = 17,225.57/x
  3. Step 3: Cross multiply
    30,837.89x = 42,555.43 × 17,225.57
  4. Step 4: Simplify right side
    30,837.89x = 733,041,538.35
  5. Step 5: Solve for x
    x = 733,041,538.35/30,837.89
  6. Step 6: Final answer
    x = 23,770.81

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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.