Home / 20,913.02-28,858.54-11,482.19

Finding the Fourth Proportional to 20,913.02, 28,858.54 and 11,482.19

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Solution

The fourth proportional to 20,913.02, 28,858.54 and 11,482.19 is: 15,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913.02 : 28,858.54 = 11,482.19 : x
  2. Step 2: Convert to fraction form
    20,913.02/28,858.54 = 11,482.19/x
  3. Step 3: Cross multiply
    20,913.02x = 28,858.54 × 11,482.19
  4. Step 4: Simplify right side
    20,913.02x = 331,359,239.40
  5. Step 5: Solve for x
    x = 331,359,239.40/20,913.02
  6. Step 6: Final answer
    x = 15,844.64

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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.