Home / 30,944.86-42,704.88-17,515.87

Finding the Fourth Proportional to 30,944.86, 42,704.88 and 17,515.87

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Solution

The fourth proportional to 30,944.86, 42,704.88 and 17,515.87 is: 24,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,944.86 : 42,704.88 = 17,515.87 : x
  2. Step 2: Convert to fraction form
    30,944.86/42,704.88 = 17,515.87/x
  3. Step 3: Cross multiply
    30,944.86x = 42,704.88 × 17,515.87
  4. Step 4: Simplify right side
    30,944.86x = 748,013,126.45
  5. Step 5: Solve for x
    x = 748,013,126.45/30,944.86
  6. Step 6: Final answer
    x = 24,172.45

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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.