Home / 43,291.71-64,885.32-21,071.79

Finding the Fourth Proportional to 43,291.71, 64,885.32 and 21,071.79

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Solution

The fourth proportional to 43,291.71, 64,885.32 and 21,071.79 is: 31,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,291.71 : 64,885.32 = 21,071.79 : x
  2. Step 2: Convert to fraction form
    43,291.71/64,885.32 = 21,071.79/x
  3. Step 3: Cross multiply
    43,291.71x = 64,885.32 × 21,071.79
  4. Step 4: Simplify right side
    43,291.71x = 1,367,249,837.12
  5. Step 5: Solve for x
    x = 1,367,249,837.12/43,291.71
  6. Step 6: Final answer
    x = 31,582.26

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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.