Home / 28,450.63-39,257.17-15,875.35

Finding the Fourth Proportional to 28,450.63, 39,257.17 and 15,875.35

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Solution

The fourth proportional to 28,450.63, 39,257.17 and 15,875.35 is: 21,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.63 : 39,257.17 = 15,875.35 : x
  2. Step 2: Convert to fraction form
    28,450.63/39,257.17 = 15,875.35/x
  3. Step 3: Cross multiply
    28,450.63x = 39,257.17 × 15,875.35
  4. Step 4: Simplify right side
    28,450.63x = 623,221,313.76
  5. Step 5: Solve for x
    x = 623,221,313.76/28,450.63
  6. Step 6: Final answer
    x = 21,905.36

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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.