Home / 20,527.02-28,329.96-11,577.32

Finding the Fourth Proportional to 20,527.02, 28,329.96 and 11,577.32

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Solution

The fourth proportional to 20,527.02, 28,329.96 and 11,577.32 is: 15,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.02 : 28,329.96 = 11,577.32 : x
  2. Step 2: Convert to fraction form
    20,527.02/28,329.96 = 11,577.32/x
  3. Step 3: Cross multiply
    20,527.02x = 28,329.96 × 11,577.32
  4. Step 4: Simplify right side
    20,527.02x = 327,985,012.51
  5. Step 5: Solve for x
    x = 327,985,012.51/20,527.02
  6. Step 6: Final answer
    x = 15,978.21

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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.