Home / 25,592.19-35,243.73-21,978.18

Finding the Fourth Proportional to 25,592.19, 35,243.73 and 21,978.18

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Solution

The fourth proportional to 25,592.19, 35,243.73 and 21,978.18 is: 30,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,592.19 : 35,243.73 = 21,978.18 : x
  2. Step 2: Convert to fraction form
    25,592.19/35,243.73 = 21,978.18/x
  3. Step 3: Cross multiply
    25,592.19x = 35,243.73 × 21,978.18
  4. Step 4: Simplify right side
    25,592.19x = 774,593,041.81
  5. Step 5: Solve for x
    x = 774,593,041.81/25,592.19
  6. Step 6: Final answer
    x = 30,266.77

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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.