Home / 19,405.64-29,121.18-10,646.68

Finding the Fourth Proportional to 19,405.64, 29,121.18 and 10,646.68

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Solution

The fourth proportional to 19,405.64, 29,121.18 and 10,646.68 is: 15,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.64 : 29,121.18 = 10,646.68 : x
  2. Step 2: Convert to fraction form
    19,405.64/29,121.18 = 10,646.68/x
  3. Step 3: Cross multiply
    19,405.64x = 29,121.18 × 10,646.68
  4. Step 4: Simplify right side
    19,405.64x = 310,043,884.68
  5. Step 5: Solve for x
    x = 310,043,884.68/19,405.64
  6. Step 6: Final answer
    x = 15,977.00

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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.