Home / 19,621.10-27,083.31-12,547.55

Finding the Fourth Proportional to 19,621.10, 27,083.31 and 12,547.55

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Solution

The fourth proportional to 19,621.10, 27,083.31 and 12,547.55 is: 17,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.10 : 27,083.31 = 12,547.55 : x
  2. Step 2: Convert to fraction form
    19,621.10/27,083.31 = 12,547.55/x
  3. Step 3: Cross multiply
    19,621.10x = 27,083.31 × 12,547.55
  4. Step 4: Simplify right side
    19,621.10x = 339,829,186.39
  5. Step 5: Solve for x
    x = 339,829,186.39/19,621.10
  6. Step 6: Final answer
    x = 17,319.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.