Home / 28,294.31-39,063.26-18,742.34

Finding the Fourth Proportional to 28,294.31, 39,063.26 and 18,742.34

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Solution

The fourth proportional to 28,294.31, 39,063.26 and 18,742.34 is: 25,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.31 : 39,063.26 = 18,742.34 : x
  2. Step 2: Convert to fraction form
    28,294.31/39,063.26 = 18,742.34/x
  3. Step 3: Cross multiply
    28,294.31x = 39,063.26 × 18,742.34
  4. Step 4: Simplify right side
    28,294.31x = 732,137,044.94
  5. Step 5: Solve for x
    x = 732,137,044.94/28,294.31
  6. Step 6: Final answer
    x = 25,875.77

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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.