Home / 19,547.51-29,321.25-7,857.99

Finding the Fourth Proportional to 19,547.51, 29,321.25 and 7,857.99

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Solution

The fourth proportional to 19,547.51, 29,321.25 and 7,857.99 is: 11,786.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,547.51 : 29,321.25 = 7,857.99 : x
  2. Step 2: Convert to fraction form
    19,547.51/29,321.25 = 7,857.99/x
  3. Step 3: Cross multiply
    19,547.51x = 29,321.25 × 7,857.99
  4. Step 4: Simplify right side
    19,547.51x = 230,406,059.82
  5. Step 5: Solve for x
    x = 230,406,059.82/19,547.51
  6. Step 6: Final answer
    x = 11,786.98

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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.