Home / 29,123.69-43,688.16-12,479.94

Finding the Fourth Proportional to 29,123.69, 43,688.16 and 12,479.94

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Solution

The fourth proportional to 29,123.69, 43,688.16 and 12,479.94 is: 18,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,123.69 : 43,688.16 = 12,479.94 : x
  2. Step 2: Convert to fraction form
    29,123.69/43,688.16 = 12,479.94/x
  3. Step 3: Cross multiply
    29,123.69x = 43,688.16 × 12,479.94
  4. Step 4: Simplify right side
    29,123.69x = 545,225,615.51
  5. Step 5: Solve for x
    x = 545,225,615.51/29,123.69
  6. Step 6: Final answer
    x = 18,721.04

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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.