Home / 28,450.69-39,261.91-15,875.44

Finding the Fourth Proportional to 28,450.69, 39,261.91 and 15,875.44

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Solution

The fourth proportional to 28,450.69, 39,261.91 and 15,875.44 is: 21,908.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.69 : 39,261.91 = 15,875.44 : x
  2. Step 2: Convert to fraction form
    28,450.69/39,261.91 = 15,875.44/x
  3. Step 3: Cross multiply
    28,450.69x = 39,261.91 × 15,875.44
  4. Step 4: Simplify right side
    28,450.69x = 623,300,096.49
  5. Step 5: Solve for x
    x = 623,300,096.49/28,450.69
  6. Step 6: Final answer
    x = 21,908.08

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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.