Home / 28,731,229.13-39,649,933.53-15,679,328.75

Finding the Fourth Proportional to 28,731,229.13, 39,649,933.53 and 15,679,328.75

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Solution

The fourth proportional to 28,731,229.13, 39,649,933.53 and 15,679,328.75 is: 21,637,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,229.13 : 39,649,933.53 = 15,679,328.75 : x
  2. Step 2: Convert to fraction form
    28,731,229.13/39,649,933.53 = 15,679,328.75/x
  3. Step 3: Cross multiply
    28,731,229.13x = 39,649,933.53 × 15,679,328.75
  4. Step 4: Simplify right side
    28,731,229.13x = 621,684,342,831,642.88
  5. Step 5: Solve for x
    x = 621,684,342,831,642.88/28,731,229.13
  6. Step 6: Final answer
    x = 21,637,930.63

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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.