Home / 31,378.02-46,949.38-18,681.34

Finding the Fourth Proportional to 31,378.02, 46,949.38 and 18,681.34

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Solution

The fourth proportional to 31,378.02, 46,949.38 and 18,681.34 is: 27,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.02 : 46,949.38 = 18,681.34 : x
  2. Step 2: Convert to fraction form
    31,378.02/46,949.38 = 18,681.34/x
  3. Step 3: Cross multiply
    31,378.02x = 46,949.38 × 18,681.34
  4. Step 4: Simplify right side
    31,378.02x = 877,077,330.57
  5. Step 5: Solve for x
    x = 877,077,330.57/31,378.02
  6. Step 6: Final answer
    x = 27,951.97

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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.