Home / 20,419.02-28,202.03-16,345.01

Finding the Fourth Proportional to 20,419.02, 28,202.03 and 16,345.01

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Solution

The fourth proportional to 20,419.02, 28,202.03 and 16,345.01 is: 22,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419.02 : 28,202.03 = 16,345.01 : x
  2. Step 2: Convert to fraction form
    20,419.02/28,202.03 = 16,345.01/x
  3. Step 3: Cross multiply
    20,419.02x = 28,202.03 × 16,345.01
  4. Step 4: Simplify right side
    20,419.02x = 460,962,239.64
  5. Step 5: Solve for x
    x = 460,962,239.64/20,419.02
  6. Step 6: Final answer
    x = 22,575.14

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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.