Home / 31,728.95-47,816.33-28,570.25

Finding the Fourth Proportional to 31,728.95, 47,816.33 and 28,570.25

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Solution

The fourth proportional to 31,728.95, 47,816.33 and 28,570.25 is: 43,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.95 : 47,816.33 = 28,570.25 : x
  2. Step 2: Convert to fraction form
    31,728.95/47,816.33 = 28,570.25/x
  3. Step 3: Cross multiply
    31,728.95x = 47,816.33 × 28,570.25
  4. Step 4: Simplify right side
    31,728.95x = 1,366,124,719.93
  5. Step 5: Solve for x
    x = 1,366,124,719.93/31,728.95
  6. Step 6: Final answer
    x = 43,056.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.