Home / 30,500.77-42,081.47-17,069.89

Finding the Fourth Proportional to 30,500.77, 42,081.47 and 17,069.89

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Solution

The fourth proportional to 30,500.77, 42,081.47 and 17,069.89 is: 23,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,500.77 : 42,081.47 = 17,069.89 : x
  2. Step 2: Convert to fraction form
    30,500.77/42,081.47 = 17,069.89/x
  3. Step 3: Cross multiply
    30,500.77x = 42,081.47 × 17,069.89
  4. Step 4: Simplify right side
    30,500.77x = 718,325,873.39
  5. Step 5: Solve for x
    x = 718,325,873.39/30,500.77
  6. Step 6: Final answer
    x = 23,551.08

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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.