Home / 27,864.12-38,430.78-17,259.60

Finding the Fourth Proportional to 27,864.12, 38,430.78 and 17,259.60

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Solution

The fourth proportional to 27,864.12, 38,430.78 and 17,259.60 is: 23,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.12 : 38,430.78 = 17,259.60 : x
  2. Step 2: Convert to fraction form
    27,864.12/38,430.78 = 17,259.60/x
  3. Step 3: Cross multiply
    27,864.12x = 38,430.78 × 17,259.60
  4. Step 4: Simplify right side
    27,864.12x = 663,299,890.49
  5. Step 5: Solve for x
    x = 663,299,890.49/27,864.12
  6. Step 6: Final answer
    x = 23,804.80

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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.