Home / 26,430.20-39,587.70-21,822.20

Finding the Fourth Proportional to 26,430.20, 39,587.70 and 21,822.20

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Solution

The fourth proportional to 26,430.20, 39,587.70 and 21,822.20 is: 32,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.20 : 39,587.70 = 21,822.20 : x
  2. Step 2: Convert to fraction form
    26,430.20/39,587.70 = 21,822.20/x
  3. Step 3: Cross multiply
    26,430.20x = 39,587.70 × 21,822.20
  4. Step 4: Simplify right side
    26,430.20x = 863,890,706.94
  5. Step 5: Solve for x
    x = 863,890,706.94/26,430.20
  6. Step 6: Final answer
    x = 32,685.74

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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.