Home / 28,450.88-39,262.24-15,875.62

Finding the Fourth Proportional to 28,450.88, 39,262.24 and 15,875.62

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Solution

The fourth proportional to 28,450.88, 39,262.24 and 15,875.62 is: 21,908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.88 : 39,262.24 = 15,875.62 : x
  2. Step 2: Convert to fraction form
    28,450.88/39,262.24 = 15,875.62/x
  3. Step 3: Cross multiply
    28,450.88x = 39,262.24 × 15,875.62
  4. Step 4: Simplify right side
    28,450.88x = 623,312,402.59
  5. Step 5: Solve for x
    x = 623,312,402.59/28,450.88
  6. Step 6: Final answer
    x = 21,908.37

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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.