Home / 31,422.18-47,137.32-10,364.40

Finding the Fourth Proportional to 31,422.18, 47,137.32 and 10,364.40

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Solution

The fourth proportional to 31,422.18, 47,137.32 and 10,364.40 is: 15,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.18 : 47,137.32 = 10,364.40 : x
  2. Step 2: Convert to fraction form
    31,422.18/47,137.32 = 10,364.40/x
  3. Step 3: Cross multiply
    31,422.18x = 47,137.32 × 10,364.40
  4. Step 4: Simplify right side
    31,422.18x = 488,550,039.41
  5. Step 5: Solve for x
    x = 488,550,039.41/31,422.18
  6. Step 6: Final answer
    x = 15,547.94

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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.