Home / 30,274.56-41,689.02-21,761.67

Finding the Fourth Proportional to 30,274.56, 41,689.02 and 21,761.67

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Solution

The fourth proportional to 30,274.56, 41,689.02 and 21,761.67 is: 29,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,274.56 : 41,689.02 = 21,761.67 : x
  2. Step 2: Convert to fraction form
    30,274.56/41,689.02 = 21,761.67/x
  3. Step 3: Cross multiply
    30,274.56x = 41,689.02 × 21,761.67
  4. Step 4: Simplify right side
    30,274.56x = 907,222,695.86
  5. Step 5: Solve for x
    x = 907,222,695.86/30,274.56
  6. Step 6: Final answer
    x = 29,966.50

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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.