Home / 42,154.22-63,212.81-22,428.09

Finding the Fourth Proportional to 42,154.22, 63,212.81 and 22,428.09

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Solution

The fourth proportional to 42,154.22, 63,212.81 and 22,428.09 is: 33,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.22 : 63,212.81 = 22,428.09 : x
  2. Step 2: Convert to fraction form
    42,154.22/63,212.81 = 22,428.09/x
  3. Step 3: Cross multiply
    42,154.22x = 63,212.81 × 22,428.09
  4. Step 4: Simplify right side
    42,154.22x = 1,417,742,479.69
  5. Step 5: Solve for x
    x = 1,417,742,479.69/42,154.22
  6. Step 6: Final answer
    x = 33,632.28

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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.