Home / 20,130.02-27,779.79-11,055.32

Finding the Fourth Proportional to 20,130.02, 27,779.79 and 11,055.32

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Solution

The fourth proportional to 20,130.02, 27,779.79 and 11,055.32 is: 15,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.02 : 27,779.79 = 11,055.32 : x
  2. Step 2: Convert to fraction form
    20,130.02/27,779.79 = 11,055.32/x
  3. Step 3: Cross multiply
    20,130.02x = 27,779.79 × 11,055.32
  4. Step 4: Simplify right side
    20,130.02x = 307,114,474.72
  5. Step 5: Solve for x
    x = 307,114,474.72/20,130.02
  6. Step 6: Final answer
    x = 15,256.54

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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.