Home / 30,024.36-45,020.30-21,276.36

Finding the Fourth Proportional to 30,024.36, 45,020.30 and 21,276.36

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Solution

The fourth proportional to 30,024.36, 45,020.30 and 21,276.36 is: 31,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,024.36 : 45,020.30 = 21,276.36 : x
  2. Step 2: Convert to fraction form
    30,024.36/45,020.30 = 21,276.36/x
  3. Step 3: Cross multiply
    30,024.36x = 45,020.30 × 21,276.36
  4. Step 4: Simplify right side
    30,024.36x = 957,868,110.11
  5. Step 5: Solve for x
    x = 957,868,110.11/30,024.36
  6. Step 6: Final answer
    x = 31,903.03

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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.