Home / 20,090.02-30,140.04-14,178.44

Finding the Fourth Proportional to 20,090.02, 30,140.04 and 14,178.44

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Solution

The fourth proportional to 20,090.02, 30,140.04 and 14,178.44 is: 21,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.02 : 30,140.04 = 14,178.44 : x
  2. Step 2: Convert to fraction form
    20,090.02/30,140.04 = 14,178.44/x
  3. Step 3: Cross multiply
    20,090.02x = 30,140.04 × 14,178.44
  4. Step 4: Simplify right side
    20,090.02x = 427,338,748.74
  5. Step 5: Solve for x
    x = 427,338,748.74/20,090.02
  6. Step 6: Final answer
    x = 21,271.20

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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.