Home / 21,505.12-32,268.64-9,816.84

Finding the Fourth Proportional to 21,505.12, 32,268.64 and 9,816.84

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Solution

The fourth proportional to 21,505.12, 32,268.64 and 9,816.84 is: 14,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.12 : 32,268.64 = 9,816.84 : x
  2. Step 2: Convert to fraction form
    21,505.12/32,268.64 = 9,816.84/x
  3. Step 3: Cross multiply
    21,505.12x = 32,268.64 × 9,816.84
  4. Step 4: Simplify right side
    21,505.12x = 316,776,075.90
  5. Step 5: Solve for x
    x = 316,776,075.90/21,505.12
  6. Step 6: Final answer
    x = 14,730.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.