Home / 30,748.01-42,431.45-17,319.02

Finding the Fourth Proportional to 30,748.01, 42,431.45 and 17,319.02

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Solution

The fourth proportional to 30,748.01, 42,431.45 and 17,319.02 is: 23,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,748.01 : 42,431.45 = 17,319.02 : x
  2. Step 2: Convert to fraction form
    30,748.01/42,431.45 = 17,319.02/x
  3. Step 3: Cross multiply
    30,748.01x = 42,431.45 × 17,319.02
  4. Step 4: Simplify right side
    30,748.01x = 734,870,832.43
  5. Step 5: Solve for x
    x = 734,870,832.43/30,748.01
  6. Step 6: Final answer
    x = 23,899.79

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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.