Home / 43,807.19-65,721.75-12,642.44

Finding the Fourth Proportional to 43,807.19, 65,721.75 and 12,642.44

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Solution

The fourth proportional to 43,807.19, 65,721.75 and 12,642.44 is: 18,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.19 : 65,721.75 = 12,642.44 : x
  2. Step 2: Convert to fraction form
    43,807.19/65,721.75 = 12,642.44/x
  3. Step 3: Cross multiply
    43,807.19x = 65,721.75 × 12,642.44
  4. Step 4: Simplify right side
    43,807.19x = 830,883,281.07
  5. Step 5: Solve for x
    x = 830,883,281.07/43,807.19
  6. Step 6: Final answer
    x = 18,966.82

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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.