Home / 30,164.28-45,256.14-21,391.98

Finding the Fourth Proportional to 30,164.28, 45,256.14 and 21,391.98

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Solution

The fourth proportional to 30,164.28, 45,256.14 and 21,391.98 is: 32,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.28 : 45,256.14 = 21,391.98 : x
  2. Step 2: Convert to fraction form
    30,164.28/45,256.14 = 21,391.98/x
  3. Step 3: Cross multiply
    30,164.28x = 45,256.14 × 21,391.98
  4. Step 4: Simplify right side
    30,164.28x = 968,118,441.76
  5. Step 5: Solve for x
    x = 968,118,441.76/30,164.28
  6. Step 6: Final answer
    x = 32,094.86

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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.