Home / 30,585.84-42,210.39-17,157.96

Finding the Fourth Proportional to 30,585.84, 42,210.39 and 17,157.96

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Solution

The fourth proportional to 30,585.84, 42,210.39 and 17,157.96 is: 23,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.84 : 42,210.39 = 17,157.96 : x
  2. Step 2: Convert to fraction form
    30,585.84/42,210.39 = 17,157.96/x
  3. Step 3: Cross multiply
    30,585.84x = 42,210.39 × 17,157.96
  4. Step 4: Simplify right side
    30,585.84x = 724,244,183.20
  5. Step 5: Solve for x
    x = 724,244,183.20/30,585.84
  6. Step 6: Final answer
    x = 23,679.07

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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.