Home / 31,476.49-47,222.07-10,415.68

Finding the Fourth Proportional to 31,476.49, 47,222.07 and 10,415.68

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Solution

The fourth proportional to 31,476.49, 47,222.07 and 10,415.68 is: 15,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,476.49 : 47,222.07 = 10,415.68 : x
  2. Step 2: Convert to fraction form
    31,476.49/47,222.07 = 10,415.68/x
  3. Step 3: Cross multiply
    31,476.49x = 47,222.07 × 10,415.68
  4. Step 4: Simplify right side
    31,476.49x = 491,849,970.06
  5. Step 5: Solve for x
    x = 491,849,970.06/31,476.49
  6. Step 6: Final answer
    x = 15,625.95

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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.