Home / 30,519.20-42,117.48-17,090.96

Finding the Fourth Proportional to 30,519.20, 42,117.48 and 17,090.96

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Solution

The fourth proportional to 30,519.20, 42,117.48 and 17,090.96 is: 23,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519.20 : 42,117.48 = 17,090.96 : x
  2. Step 2: Convert to fraction form
    30,519.20/42,117.48 = 17,090.96/x
  3. Step 3: Cross multiply
    30,519.20x = 42,117.48 × 17,090.96
  4. Step 4: Simplify right side
    30,519.20x = 719,828,165.98
  5. Step 5: Solve for x
    x = 719,828,165.98/30,519.20
  6. Step 6: Final answer
    x = 23,586.08

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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.