Home / 20,103,013.28-27,742,710.54-11,283,012.94

Finding the Fourth Proportional to 20,103,013.28, 27,742,710.54 and 11,283,012.94

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Solution

The fourth proportional to 20,103,013.28, 27,742,710.54 and 11,283,012.94 is: 15,570,867.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103,013.28 : 27,742,710.54 = 11,283,012.94 : x
  2. Step 2: Convert to fraction form
    20,103,013.28/27,742,710.54 = 11,283,012.94/x
  3. Step 3: Cross multiply
    20,103,013.28x = 27,742,710.54 × 11,283,012.94
  4. Step 4: Simplify right side
    20,103,013.28x = 313,021,362,013,494.38
  5. Step 5: Solve for x
    x = 313,021,362,013,494.38/20,103,013.28
  6. Step 6: Final answer
    x = 15,570,867.79

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1.5x scale

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.