Home / 30,754.08-42,431.85-17,320.64

Finding the Fourth Proportional to 30,754.08, 42,431.85 and 17,320.64

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Solution

The fourth proportional to 30,754.08, 42,431.85 and 17,320.64 is: 23,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,754.08 : 42,431.85 = 17,320.64 : x
  2. Step 2: Convert to fraction form
    30,754.08/42,431.85 = 17,320.64/x
  3. Step 3: Cross multiply
    30,754.08x = 42,431.85 × 17,320.64
  4. Step 4: Simplify right side
    30,754.08x = 734,946,586.22
  5. Step 5: Solve for x
    x = 734,946,586.22/30,754.08
  6. Step 6: Final answer
    x = 23,897.53

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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.