Home / 19,729.87-29,591.25-5,686.45

Finding the Fourth Proportional to 19,729.87, 29,591.25 and 5,686.45

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Solution

The fourth proportional to 19,729.87, 29,591.25 and 5,686.45 is: 8,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.87 : 29,591.25 = 5,686.45 : x
  2. Step 2: Convert to fraction form
    19,729.87/29,591.25 = 5,686.45/x
  3. Step 3: Cross multiply
    19,729.87x = 29,591.25 × 5,686.45
  4. Step 4: Simplify right side
    19,729.87x = 168,269,068.26
  5. Step 5: Solve for x
    x = 168,269,068.26/19,729.87
  6. Step 6: Final answer
    x = 8,528.64

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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.