Home / 28,448.89-39,259.47-15,873.64

Finding the Fourth Proportional to 28,448.89, 39,259.47 and 15,873.64

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Solution

The fourth proportional to 28,448.89, 39,259.47 and 15,873.64 is: 21,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448.89 : 39,259.47 = 15,873.64 : x
  2. Step 2: Convert to fraction form
    28,448.89/39,259.47 = 15,873.64/x
  3. Step 3: Cross multiply
    28,448.89x = 39,259.47 × 15,873.64
  4. Step 4: Simplify right side
    28,448.89x = 623,190,693.37
  5. Step 5: Solve for x
    x = 623,190,693.37/28,448.89
  6. Step 6: Final answer
    x = 21,905.62

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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.