Home / 31,314.42-46,971.63-7,621.92

Finding the Fourth Proportional to 31,314.42, 46,971.63 and 7,621.92

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Solution

The fourth proportional to 31,314.42, 46,971.63 and 7,621.92 is: 11,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,314.42 : 46,971.63 = 7,621.92 : x
  2. Step 2: Convert to fraction form
    31,314.42/46,971.63 = 7,621.92/x
  3. Step 3: Cross multiply
    31,314.42x = 46,971.63 × 7,621.92
  4. Step 4: Simplify right side
    31,314.42x = 358,014,006.13
  5. Step 5: Solve for x
    x = 358,014,006.13/31,314.42
  6. Step 6: Final answer
    x = 11,432.88

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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.