Home / 30,520.02-42,114.69-17,090.22

Finding the Fourth Proportional to 30,520.02, 42,114.69 and 17,090.22

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Solution

The fourth proportional to 30,520.02, 42,114.69 and 17,090.22 is: 23,582.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520.02 : 42,114.69 = 17,090.22 : x
  2. Step 2: Convert to fraction form
    30,520.02/42,114.69 = 17,090.22/x
  3. Step 3: Cross multiply
    30,520.02x = 42,114.69 × 17,090.22
  4. Step 4: Simplify right side
    30,520.02x = 719,749,317.33
  5. Step 5: Solve for x
    x = 719,749,317.33/30,520.02
  6. Step 6: Final answer
    x = 23,582.86

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Double scale
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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.