Home / 30,588.54-42,211.96-18,651.16

Finding the Fourth Proportional to 30,588.54, 42,211.96 and 18,651.16

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Solution

The fourth proportional to 30,588.54, 42,211.96 and 18,651.16 is: 25,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588.54 : 42,211.96 = 18,651.16 : x
  2. Step 2: Convert to fraction form
    30,588.54/42,211.96 = 18,651.16/x
  3. Step 3: Cross multiply
    30,588.54x = 42,211.96 × 18,651.16
  4. Step 4: Simplify right side
    30,588.54x = 787,302,019.87
  5. Step 5: Solve for x
    x = 787,302,019.87/30,588.54
  6. Step 6: Final answer
    x = 25,738.46

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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.