Home / 31,518.72-47,278.23-9,332.51

Finding the Fourth Proportional to 31,518.72, 47,278.23 and 9,332.51

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Solution

The fourth proportional to 31,518.72, 47,278.23 and 9,332.51 is: 13,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.72 : 47,278.23 = 9,332.51 : x
  2. Step 2: Convert to fraction form
    31,518.72/47,278.23 = 9,332.51/x
  3. Step 3: Cross multiply
    31,518.72x = 47,278.23 × 9,332.51
  4. Step 4: Simplify right side
    31,518.72x = 441,224,507.59
  5. Step 5: Solve for x
    x = 441,224,507.59/31,518.72
  6. Step 6: Final answer
    x = 13,998.81

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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.