Home / 31,975.64-47,970.74-9,790.76

Finding the Fourth Proportional to 31,975.64, 47,970.74 and 9,790.76

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Solution

The fourth proportional to 31,975.64, 47,970.74 and 9,790.76 is: 14,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.64 : 47,970.74 = 9,790.76 : x
  2. Step 2: Convert to fraction form
    31,975.64/47,970.74 = 9,790.76/x
  3. Step 3: Cross multiply
    31,975.64x = 47,970.74 × 9,790.76
  4. Step 4: Simplify right side
    31,975.64x = 469,670,002.36
  5. Step 5: Solve for x
    x = 469,670,002.36/31,975.64
  6. Step 6: Final answer
    x = 14,688.37

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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.