Home / 23,156.35-31,955.79-12,545.98

Finding the Fourth Proportional to 23,156.35, 31,955.79 and 12,545.98

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Solution

The fourth proportional to 23,156.35, 31,955.79 and 12,545.98 is: 17,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,156.35 : 31,955.79 = 12,545.98 : x
  2. Step 2: Convert to fraction form
    23,156.35/31,955.79 = 12,545.98/x
  3. Step 3: Cross multiply
    23,156.35x = 31,955.79 × 12,545.98
  4. Step 4: Simplify right side
    23,156.35x = 400,916,702.22
  5. Step 5: Solve for x
    x = 400,916,702.22/23,156.35
  6. Step 6: Final answer
    x = 17,313.47

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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.