Home / 31,943.16-47,931.14-14,185.98

Finding the Fourth Proportional to 31,943.16, 47,931.14 and 14,185.98

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Solution

The fourth proportional to 31,943.16, 47,931.14 and 14,185.98 is: 21,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.16 : 47,931.14 = 14,185.98 : x
  2. Step 2: Convert to fraction form
    31,943.16/47,931.14 = 14,185.98/x
  3. Step 3: Cross multiply
    31,943.16x = 47,931.14 × 14,185.98
  4. Step 4: Simplify right side
    31,943.16x = 679,950,193.42
  5. Step 5: Solve for x
    x = 679,950,193.42/31,943.16
  6. Step 6: Final answer
    x = 21,286.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.