Home / 30,518.58-42,110.91-17,090.40

Finding the Fourth Proportional to 30,518.58, 42,110.91 and 17,090.40

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Solution

The fourth proportional to 30,518.58, 42,110.91 and 17,090.40 is: 23,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.58 : 42,110.91 = 17,090.40 : x
  2. Step 2: Convert to fraction form
    30,518.58/42,110.91 = 17,090.40/x
  3. Step 3: Cross multiply
    30,518.58x = 42,110.91 × 17,090.40
  4. Step 4: Simplify right side
    30,518.58x = 719,692,296.26
  5. Step 5: Solve for x
    x = 719,692,296.26/30,518.58
  6. Step 6: Final answer
    x = 23,582.10

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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.