Home / 31,364.80-47,047.20-28,837.60

Finding the Fourth Proportional to 31,364.80, 47,047.20 and 28,837.60

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Solution

The fourth proportional to 31,364.80, 47,047.20 and 28,837.60 is: 43,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.80 : 47,047.20 = 28,837.60 : x
  2. Step 2: Convert to fraction form
    31,364.80/47,047.20 = 28,837.60/x
  3. Step 3: Cross multiply
    31,364.80x = 47,047.20 × 28,837.60
  4. Step 4: Simplify right side
    31,364.80x = 1,356,728,334.72
  5. Step 5: Solve for x
    x = 1,356,728,334.72/31,364.80
  6. Step 6: Final answer
    x = 43,256.40

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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.