Home / 40,709.48-61,072.95-12,628.94

Finding the Fourth Proportional to 40,709.48, 61,072.95 and 12,628.94

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Solution

The fourth proportional to 40,709.48, 61,072.95 and 12,628.94 is: 18,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,709.48 : 61,072.95 = 12,628.94 : x
  2. Step 2: Convert to fraction form
    40,709.48/61,072.95 = 12,628.94/x
  3. Step 3: Cross multiply
    40,709.48x = 61,072.95 × 12,628.94
  4. Step 4: Simplify right side
    40,709.48x = 771,286,315.81
  5. Step 5: Solve for x
    x = 771,286,315.81/40,709.48
  6. Step 6: Final answer
    x = 18,946.11

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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.