Home / 14,090.28-21,156.12-13,841.40

Finding the Fourth Proportional to 14,090.28, 21,156.12 and 13,841.40

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Solution

The fourth proportional to 14,090.28, 21,156.12 and 13,841.40 is: 20,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.28 : 21,156.12 = 13,841.40 : x
  2. Step 2: Convert to fraction form
    14,090.28/21,156.12 = 13,841.40/x
  3. Step 3: Cross multiply
    14,090.28x = 21,156.12 × 13,841.40
  4. Step 4: Simplify right side
    14,090.28x = 292,830,319.37
  5. Step 5: Solve for x
    x = 292,830,319.37/14,090.28
  6. Step 6: Final answer
    x = 20,782.43

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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.