Home / 21,355,526.90-29,470,617.87-11,565,971.57

Finding the Fourth Proportional to 21,355,526.90, 29,470,617.87 and 11,565,971.57

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Solution

The fourth proportional to 21,355,526.90, 29,470,617.87 and 11,565,971.57 is: 15,961,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355,526.90 : 29,470,617.87 = 11,565,971.57 : x
  2. Step 2: Convert to fraction form
    21,355,526.90/29,470,617.87 = 11,565,971.57/x
  3. Step 3: Cross multiply
    21,355,526.90x = 29,470,617.87 × 11,565,971.57
  4. Step 4: Simplify right side
    21,355,526.90x = 340,856,328,434,754
  5. Step 5: Solve for x
    x = 340,856,328,434,754/21,355,526.90
  6. Step 6: Final answer
    x = 15,961,035.76

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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.