Home / 31,541.73-47,313.50-11,816.51

Finding the Fourth Proportional to 31,541.73, 47,313.50 and 11,816.51

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Solution

The fourth proportional to 31,541.73, 47,313.50 and 11,816.51 is: 17,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541.73 : 47,313.50 = 11,816.51 : x
  2. Step 2: Convert to fraction form
    31,541.73/47,313.50 = 11,816.51/x
  3. Step 3: Cross multiply
    31,541.73x = 47,313.50 × 11,816.51
  4. Step 4: Simplify right side
    31,541.73x = 559,080,386.80
  5. Step 5: Solve for x
    x = 559,080,386.80/31,541.73
  6. Step 6: Final answer
    x = 17,725.10

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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.