Home / 31,708.88-47,578.08-14,190.56

Finding the Fourth Proportional to 31,708.88, 47,578.08 and 14,190.56

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Solution

The fourth proportional to 31,708.88, 47,578.08 and 14,190.56 is: 21,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.88 : 47,578.08 = 14,190.56 : x
  2. Step 2: Convert to fraction form
    31,708.88/47,578.08 = 14,190.56/x
  3. Step 3: Cross multiply
    31,708.88x = 47,578.08 × 14,190.56
  4. Step 4: Simplify right side
    31,708.88x = 675,159,598.92
  5. Step 5: Solve for x
    x = 675,159,598.92/31,708.88
  6. Step 6: Final answer
    x = 21,292.45

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1.5x scale

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.