Home / 31,516.58-47,280.48-10,457.88

Finding the Fourth Proportional to 31,516.58, 47,280.48 and 10,457.88

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Solution

The fourth proportional to 31,516.58, 47,280.48 and 10,457.88 is: 15,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,516.58 : 47,280.48 = 10,457.88 : x
  2. Step 2: Convert to fraction form
    31,516.58/47,280.48 = 10,457.88/x
  3. Step 3: Cross multiply
    31,516.58x = 47,280.48 × 10,457.88
  4. Step 4: Simplify right side
    31,516.58x = 494,453,586.18
  5. Step 5: Solve for x
    x = 494,453,586.18/31,516.58
  6. Step 6: Final answer
    x = 15,688.68

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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.