Home / 31,312.94-46,970.25-7,941.20

Finding the Fourth Proportional to 31,312.94, 46,970.25 and 7,941.20

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Solution

The fourth proportional to 31,312.94, 46,970.25 and 7,941.20 is: 11,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.94 : 46,970.25 = 7,941.20 : x
  2. Step 2: Convert to fraction form
    31,312.94/46,970.25 = 7,941.20/x
  3. Step 3: Cross multiply
    31,312.94x = 46,970.25 × 7,941.20
  4. Step 4: Simplify right side
    31,312.94x = 373,000,149.30
  5. Step 5: Solve for x
    x = 373,000,149.30/31,312.94
  6. Step 6: Final answer
    x = 11,912.01

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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.