Home / 20,259.02-30,402.14-7,111.44

Finding the Fourth Proportional to 20,259.02, 30,402.14 and 7,111.44

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Solution

The fourth proportional to 20,259.02, 30,402.14 and 7,111.44 is: 10,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.02 : 30,402.14 = 7,111.44 : x
  2. Step 2: Convert to fraction form
    20,259.02/30,402.14 = 7,111.44/x
  3. Step 3: Cross multiply
    20,259.02x = 30,402.14 × 7,111.44
  4. Step 4: Simplify right side
    20,259.02x = 216,202,994.48
  5. Step 5: Solve for x
    x = 216,202,994.48/20,259.02
  6. Step 6: Final answer
    x = 10,671.94

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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.