Home / 43,386.72-65,076.64-13,803.36

Finding the Fourth Proportional to 43,386.72, 65,076.64 and 13,803.36

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Solution

The fourth proportional to 43,386.72, 65,076.64 and 13,803.36 is: 20,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,386.72 : 65,076.64 = 13,803.36 : x
  2. Step 2: Convert to fraction form
    43,386.72/65,076.64 = 13,803.36/x
  3. Step 3: Cross multiply
    43,386.72x = 65,076.64 × 13,803.36
  4. Step 4: Simplify right side
    43,386.72x = 898,276,289.51
  5. Step 5: Solve for x
    x = 898,276,289.51/43,386.72
  6. Step 6: Final answer
    x = 20,703.95

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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.