Home / 25,875.84-38,755.36-18,119.28

Finding the Fourth Proportional to 25,875.84, 38,755.36 and 18,119.28

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Solution

The fourth proportional to 25,875.84, 38,755.36 and 18,119.28 is: 27,138.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.84 : 38,755.36 = 18,119.28 : x
  2. Step 2: Convert to fraction form
    25,875.84/38,755.36 = 18,119.28/x
  3. Step 3: Cross multiply
    25,875.84x = 38,755.36 × 18,119.28
  4. Step 4: Simplify right side
    25,875.84x = 702,219,219.34
  5. Step 5: Solve for x
    x = 702,219,219.34/25,875.84
  6. Step 6: Final answer
    x = 27,138.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.