Home / 31,409.21-47,119.58-10,350.49

Finding the Fourth Proportional to 31,409.21, 47,119.58 and 10,350.49

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Solution

The fourth proportional to 31,409.21, 47,119.58 and 10,350.49 is: 15,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409.21 : 47,119.58 = 10,350.49 : x
  2. Step 2: Convert to fraction form
    31,409.21/47,119.58 = 10,350.49/x
  3. Step 3: Cross multiply
    31,409.21x = 47,119.58 × 10,350.49
  4. Step 4: Simplify right side
    31,409.21x = 487,710,728.32
  5. Step 5: Solve for x
    x = 487,710,728.32/31,409.21
  6. Step 6: Final answer
    x = 15,527.64

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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.