Home / 20,420.02-28,203.41-16,346.01

Finding the Fourth Proportional to 20,420.02, 28,203.41 and 16,346.01

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Solution

The fourth proportional to 20,420.02, 28,203.41 and 16,346.01 is: 22,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,420.02 : 28,203.41 = 16,346.01 : x
  2. Step 2: Convert to fraction form
    20,420.02/28,203.41 = 16,346.01/x
  3. Step 3: Cross multiply
    20,420.02x = 28,203.41 × 16,346.01
  4. Step 4: Simplify right side
    20,420.02x = 461,013,221.89
  5. Step 5: Solve for x
    x = 461,013,221.89/20,420.02
  6. Step 6: Final answer
    x = 22,576.53

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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.