Home / 31,728.51-47,597.22-13,011.30

Finding the Fourth Proportional to 31,728.51, 47,597.22 and 13,011.30

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Solution

The fourth proportional to 31,728.51, 47,597.22 and 13,011.30 is: 19,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.51 : 47,597.22 = 13,011.30 : x
  2. Step 2: Convert to fraction form
    31,728.51/47,597.22 = 13,011.30/x
  3. Step 3: Cross multiply
    31,728.51x = 47,597.22 × 13,011.30
  4. Step 4: Simplify right side
    31,728.51x = 619,301,708.59
  5. Step 5: Solve for x
    x = 619,301,708.59/31,728.51
  6. Step 6: Final answer
    x = 19,518.78

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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.