Home / 20,344.28-28,075.56-14,386.64

Finding the Fourth Proportional to 20,344.28, 28,075.56 and 14,386.64

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Solution

The fourth proportional to 20,344.28, 28,075.56 and 14,386.64 is: 19,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.28 : 28,075.56 = 14,386.64 : x
  2. Step 2: Convert to fraction form
    20,344.28/28,075.56 = 14,386.64/x
  3. Step 3: Cross multiply
    20,344.28x = 28,075.56 × 14,386.64
  4. Step 4: Simplify right side
    20,344.28x = 403,912,974.52
  5. Step 5: Solve for x
    x = 403,912,974.52/20,344.28
  6. Step 6: Final answer
    x = 19,853.88

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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.