Home / 27,909.37-38,515.53-17,160.40

Finding the Fourth Proportional to 27,909.37, 38,515.53 and 17,160.40

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Solution

The fourth proportional to 27,909.37, 38,515.53 and 17,160.40 is: 23,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.37 : 38,515.53 = 17,160.40 : x
  2. Step 2: Convert to fraction form
    27,909.37/38,515.53 = 17,160.40/x
  3. Step 3: Cross multiply
    27,909.37x = 38,515.53 × 17,160.40
  4. Step 4: Simplify right side
    27,909.37x = 660,941,901.01
  5. Step 5: Solve for x
    x = 660,941,901.01/27,909.37
  6. Step 6: Final answer
    x = 23,681.72

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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.