Home / 28,926.64-43,340.38-19,421.16

Finding the Fourth Proportional to 28,926.64, 43,340.38 and 19,421.16

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Solution

The fourth proportional to 28,926.64, 43,340.38 and 19,421.16 is: 29,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.64 : 43,340.38 = 19,421.16 : x
  2. Step 2: Convert to fraction form
    28,926.64/43,340.38 = 19,421.16/x
  3. Step 3: Cross multiply
    28,926.64x = 43,340.38 × 19,421.16
  4. Step 4: Simplify right side
    28,926.64x = 841,720,454.44
  5. Step 5: Solve for x
    x = 841,720,454.44/28,926.64
  6. Step 6: Final answer
    x = 29,098.45

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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.