Home / 19,725.60-29,561.96-9,715.08

Finding the Fourth Proportional to 19,725.60, 29,561.96 and 9,715.08

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Solution

The fourth proportional to 19,725.60, 29,561.96 and 9,715.08 is: 14,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.60 : 29,561.96 = 9,715.08 : x
  2. Step 2: Convert to fraction form
    19,725.60/29,561.96 = 9,715.08/x
  3. Step 3: Cross multiply
    19,725.60x = 29,561.96 × 9,715.08
  4. Step 4: Simplify right side
    19,725.60x = 287,196,806.36
  5. Step 5: Solve for x
    x = 287,196,806.36/19,725.60
  6. Step 6: Final answer
    x = 14,559.60

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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.