Home / 20,010.13-30,014.40-5,017.21

Finding the Fourth Proportional to 20,010.13, 30,014.40 and 5,017.21

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Solution

The fourth proportional to 20,010.13, 30,014.40 and 5,017.21 is: 7,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.13 : 30,014.40 = 5,017.21 : x
  2. Step 2: Convert to fraction form
    20,010.13/30,014.40 = 5,017.21/x
  3. Step 3: Cross multiply
    20,010.13x = 30,014.40 × 5,017.21
  4. Step 4: Simplify right side
    20,010.13x = 150,588,547.82
  5. Step 5: Solve for x
    x = 150,588,547.82/20,010.13
  6. Step 6: Final answer
    x = 7,525.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.