Home / 28,450.64-39,261.83-15,875.39

Finding the Fourth Proportional to 28,450.64, 39,261.83 and 15,875.39

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Solution

The fourth proportional to 28,450.64, 39,261.83 and 15,875.39 is: 21,908.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.64 : 39,261.83 = 15,875.39 : x
  2. Step 2: Convert to fraction form
    28,450.64/39,261.83 = 15,875.39/x
  3. Step 3: Cross multiply
    28,450.64x = 39,261.83 × 15,875.39
  4. Step 4: Simplify right side
    28,450.64x = 623,296,587.68
  5. Step 5: Solve for x
    x = 623,296,587.68/28,450.64
  6. Step 6: Final answer
    x = 21,908.00

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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.