Home / 20,645,881.98-28,483,133.67-11,942,438.46

Finding the Fourth Proportional to 20,645,881.98, 28,483,133.67 and 11,942,438.46

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Solution

The fourth proportional to 20,645,881.98, 28,483,133.67 and 11,942,438.46 is: 16,475,831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,881.98 : 28,483,133.67 = 11,942,438.46 : x
  2. Step 2: Convert to fraction form
    20,645,881.98/28,483,133.67 = 11,942,438.46/x
  3. Step 3: Cross multiply
    20,645,881.98x = 28,483,133.67 × 11,942,438.46
  4. Step 4: Simplify right side
    20,645,881.98x = 340,158,071,001,929
  5. Step 5: Solve for x
    x = 340,158,071,001,929/20,645,881.98
  6. Step 6: Final answer
    x = 16,475,831.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.