Home / 30,518.87-42,116.99-17,090.46

Finding the Fourth Proportional to 30,518.87, 42,116.99 and 17,090.46

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Solution

The fourth proportional to 30,518.87, 42,116.99 and 17,090.46 is: 23,585.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.87 : 42,116.99 = 17,090.46 : x
  2. Step 2: Convert to fraction form
    30,518.87/42,116.99 = 17,090.46/x
  3. Step 3: Cross multiply
    30,518.87x = 42,116.99 × 17,090.46
  4. Step 4: Simplify right side
    30,518.87x = 719,798,647.46
  5. Step 5: Solve for x
    x = 719,798,647.46/30,518.87
  6. Step 6: Final answer
    x = 23,585.37

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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.