Home / 21,420.35-32,130.52-5,840.27

Finding the Fourth Proportional to 21,420.35, 32,130.52 and 5,840.27

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Solution

The fourth proportional to 21,420.35, 32,130.52 and 5,840.27 is: 8,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420.35 : 32,130.52 = 5,840.27 : x
  2. Step 2: Convert to fraction form
    21,420.35/32,130.52 = 5,840.27/x
  3. Step 3: Cross multiply
    21,420.35x = 32,130.52 × 5,840.27
  4. Step 4: Simplify right side
    21,420.35x = 187,650,736.79
  5. Step 5: Solve for x
    x = 187,650,736.79/21,420.35
  6. Step 6: Final answer
    x = 8,760.40

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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.