Home / 31,561.58-47,360.46-12,838.16

Finding the Fourth Proportional to 31,561.58, 47,360.46 and 12,838.16

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Solution

The fourth proportional to 31,561.58, 47,360.46 and 12,838.16 is: 19,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.58 : 47,360.46 = 12,838.16 : x
  2. Step 2: Convert to fraction form
    31,561.58/47,360.46 = 12,838.16/x
  3. Step 3: Cross multiply
    31,561.58x = 47,360.46 × 12,838.16
  4. Step 4: Simplify right side
    31,561.58x = 608,021,163.15
  5. Step 5: Solve for x
    x = 608,021,163.15/31,561.58
  6. Step 6: Final answer
    x = 19,264.60

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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.