Home / 19,886.66-27,433.15-12,330.53

Finding the Fourth Proportional to 19,886.66, 27,433.15 and 12,330.53

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Solution

The fourth proportional to 19,886.66, 27,433.15 and 12,330.53 is: 17,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.66 : 27,433.15 = 12,330.53 : x
  2. Step 2: Convert to fraction form
    19,886.66/27,433.15 = 12,330.53/x
  3. Step 3: Cross multiply
    19,886.66x = 27,433.15 × 12,330.53
  4. Step 4: Simplify right side
    19,886.66x = 338,265,111.08
  5. Step 5: Solve for x
    x = 338,265,111.08/19,886.66
  6. Step 6: Final answer
    x = 17,009.65

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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.