Home / 30,237.50-45,351.39-21,445.76

Finding the Fourth Proportional to 30,237.50, 45,351.39 and 21,445.76

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Solution

The fourth proportional to 30,237.50, 45,351.39 and 21,445.76 is: 32,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.50 : 45,351.39 = 21,445.76 : x
  2. Step 2: Convert to fraction form
    30,237.50/45,351.39 = 21,445.76/x
  3. Step 3: Cross multiply
    30,237.50x = 45,351.39 × 21,445.76
  4. Step 4: Simplify right side
    30,237.50x = 972,595,025.61
  5. Step 5: Solve for x
    x = 972,595,025.61/30,237.50
  6. Step 6: Final answer
    x = 32,165.19

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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.