Home / 21,004,417.62-28,985,380.15-11,585,581.80

Finding the Fourth Proportional to 21,004,417.62, 28,985,380.15 and 11,585,581.80

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Solution

The fourth proportional to 21,004,417.62, 28,985,380.15 and 11,585,581.80 is: 15,987,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,417.62 : 28,985,380.15 = 11,585,581.80 : x
  2. Step 2: Convert to fraction form
    21,004,417.62/28,985,380.15 = 11,585,581.80/x
  3. Step 3: Cross multiply
    21,004,417.62x = 28,985,380.15 × 11,585,581.80
  4. Step 4: Simplify right side
    21,004,417.62x = 335,812,492,731,921.25
  5. Step 5: Solve for x
    x = 335,812,492,731,921.25/21,004,417.62
  6. Step 6: Final answer
    x = 15,987,707.86

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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.