Home / 19,551.38-29,075.54-18,928.60

Finding the Fourth Proportional to 19,551.38, 29,075.54 and 18,928.60

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Solution

The fourth proportional to 19,551.38, 29,075.54 and 18,928.60 is: 28,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.38 : 29,075.54 = 18,928.60 : x
  2. Step 2: Convert to fraction form
    19,551.38/29,075.54 = 18,928.60/x
  3. Step 3: Cross multiply
    19,551.38x = 29,075.54 × 18,928.60
  4. Step 4: Simplify right side
    19,551.38x = 550,359,206.55
  5. Step 5: Solve for x
    x = 550,359,206.55/19,551.38
  6. Step 6: Final answer
    x = 28,149.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.