Home / 27,663.08-38,178.47-16,905.74

Finding the Fourth Proportional to 27,663.08, 38,178.47 and 16,905.74

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Solution

The fourth proportional to 27,663.08, 38,178.47 and 16,905.74 is: 23,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663.08 : 38,178.47 = 16,905.74 : x
  2. Step 2: Convert to fraction form
    27,663.08/38,178.47 = 16,905.74/x
  3. Step 3: Cross multiply
    27,663.08x = 38,178.47 × 16,905.74
  4. Step 4: Simplify right side
    27,663.08x = 645,435,138.79
  5. Step 5: Solve for x
    x = 645,435,138.79/27,663.08
  6. Step 6: Final answer
    x = 23,332.01

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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.