Home / 20,890.33-31,299.02-17,402.74

Finding the Fourth Proportional to 20,890.33, 31,299.02 and 17,402.74

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Solution

The fourth proportional to 20,890.33, 31,299.02 and 17,402.74 is: 26,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890.33 : 31,299.02 = 17,402.74 : x
  2. Step 2: Convert to fraction form
    20,890.33/31,299.02 = 17,402.74/x
  3. Step 3: Cross multiply
    20,890.33x = 31,299.02 × 17,402.74
  4. Step 4: Simplify right side
    20,890.33x = 544,688,707.31
  5. Step 5: Solve for x
    x = 544,688,707.31/20,890.33
  6. Step 6: Final answer
    x = 26,073.72

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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.