Home / 28,924,665.33-39,915,928.62-15,872,142.63

Finding the Fourth Proportional to 28,924,665.33, 39,915,928.62 and 15,872,142.63

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Solution

The fourth proportional to 28,924,665.33, 39,915,928.62 and 15,872,142.63 is: 21,903,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924,665.33 : 39,915,928.62 = 15,872,142.63 : x
  2. Step 2: Convert to fraction form
    28,924,665.33/39,915,928.62 = 15,872,142.63/x
  3. Step 3: Cross multiply
    28,924,665.33x = 39,915,928.62 × 15,872,142.63
  4. Step 4: Simplify right side
    28,924,665.33x = 633,551,312,265,539
  5. Step 5: Solve for x
    x = 633,551,312,265,539/28,924,665.33
  6. Step 6: Final answer
    x = 21,903,496.72

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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.