Home / 34,330.59-51,434.38-12,129.81

Finding the Fourth Proportional to 34,330.59, 51,434.38 and 12,129.81

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Solution

The fourth proportional to 34,330.59, 51,434.38 and 12,129.81 is: 18,172.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,330.59 : 51,434.38 = 12,129.81 : x
  2. Step 2: Convert to fraction form
    34,330.59/51,434.38 = 12,129.81/x
  3. Step 3: Cross multiply
    34,330.59x = 51,434.38 × 12,129.81
  4. Step 4: Simplify right side
    34,330.59x = 623,889,055.61
  5. Step 5: Solve for x
    x = 623,889,055.61/34,330.59
  6. Step 6: Final answer
    x = 18,172.98

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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.