Home / 28,242.12-42,368.10-11,611.32

Finding the Fourth Proportional to 28,242.12, 42,368.10 and 11,611.32

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Solution

The fourth proportional to 28,242.12, 42,368.10 and 11,611.32 is: 17,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.12 : 42,368.10 = 11,611.32 : x
  2. Step 2: Convert to fraction form
    28,242.12/42,368.10 = 11,611.32/x
  3. Step 3: Cross multiply
    28,242.12x = 42,368.10 × 11,611.32
  4. Step 4: Simplify right side
    28,242.12x = 491,949,566.89
  5. Step 5: Solve for x
    x = 491,949,566.89/28,242.12
  6. Step 6: Final answer
    x = 17,419.00

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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.