Home / 18,428.28-25,430.28-10,361.71

Finding the Fourth Proportional to 18,428.28, 25,430.28 and 10,361.71

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Solution

The fourth proportional to 18,428.28, 25,430.28 and 10,361.71 is: 14,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.28 : 25,430.28 = 10,361.71 : x
  2. Step 2: Convert to fraction form
    18,428.28/25,430.28 = 10,361.71/x
  3. Step 3: Cross multiply
    18,428.28x = 25,430.28 × 10,361.71
  4. Step 4: Simplify right side
    18,428.28x = 263,501,172.89
  5. Step 5: Solve for x
    x = 263,501,172.89/18,428.28
  6. Step 6: Final answer
    x = 14,298.74

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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.