Home / 31,356.45-47,041.43-9,168.12

Finding the Fourth Proportional to 31,356.45, 47,041.43 and 9,168.12

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Solution

The fourth proportional to 31,356.45, 47,041.43 and 9,168.12 is: 13,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.45 : 47,041.43 = 9,168.12 : x
  2. Step 2: Convert to fraction form
    31,356.45/47,041.43 = 9,168.12/x
  3. Step 3: Cross multiply
    31,356.45x = 47,041.43 × 9,168.12
  4. Step 4: Simplify right side
    31,356.45x = 431,281,429.37
  5. Step 5: Solve for x
    x = 431,281,429.37/31,356.45
  6. Step 6: Final answer
    x = 13,754.15

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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.