Home / 30,228.56-45,361.08-21,535.76

Finding the Fourth Proportional to 30,228.56, 45,361.08 and 21,535.76

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Solution

The fourth proportional to 30,228.56, 45,361.08 and 21,535.76 is: 32,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.56 : 45,361.08 = 21,535.76 : x
  2. Step 2: Convert to fraction form
    30,228.56/45,361.08 = 21,535.76/x
  3. Step 3: Cross multiply
    30,228.56x = 45,361.08 × 21,535.76
  4. Step 4: Simplify right side
    30,228.56x = 976,885,332.22
  5. Step 5: Solve for x
    x = 976,885,332.22/30,228.56
  6. Step 6: Final answer
    x = 32,316.63

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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.