Home / 35,085.40-48,419.58-19,978.36

Finding the Fourth Proportional to 35,085.40, 48,419.58 and 19,978.36

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Solution

The fourth proportional to 35,085.40, 48,419.58 and 19,978.36 is: 27,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,085.40 : 48,419.58 = 19,978.36 : x
  2. Step 2: Convert to fraction form
    35,085.40/48,419.58 = 19,978.36/x
  3. Step 3: Cross multiply
    35,085.40x = 48,419.58 × 19,978.36
  4. Step 4: Simplify right side
    35,085.40x = 967,343,800.29
  5. Step 5: Solve for x
    x = 967,343,800.29/35,085.40
  6. Step 6: Final answer
    x = 27,571.12

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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.