Home / 27,918.08-38,487.12-19,957.40

Finding the Fourth Proportional to 27,918.08, 38,487.12 and 19,957.40

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Solution

The fourth proportional to 27,918.08, 38,487.12 and 19,957.40 is: 27,512.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.08 : 38,487.12 = 19,957.40 : x
  2. Step 2: Convert to fraction form
    27,918.08/38,487.12 = 19,957.40/x
  3. Step 3: Cross multiply
    27,918.08x = 38,487.12 × 19,957.40
  4. Step 4: Simplify right side
    27,918.08x = 768,102,848.69
  5. Step 5: Solve for x
    x = 768,102,848.69/27,918.08
  6. Step 6: Final answer
    x = 27,512.74

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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.