Home / 19,089.40-28,631.02-5,235.16

Finding the Fourth Proportional to 19,089.40, 28,631.02 and 5,235.16

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Solution

The fourth proportional to 19,089.40, 28,631.02 and 5,235.16 is: 7,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.40 : 28,631.02 = 5,235.16 : x
  2. Step 2: Convert to fraction form
    19,089.40/28,631.02 = 5,235.16/x
  3. Step 3: Cross multiply
    19,089.40x = 28,631.02 × 5,235.16
  4. Step 4: Simplify right side
    19,089.40x = 149,887,970.66
  5. Step 5: Solve for x
    x = 149,887,970.66/19,089.40
  6. Step 6: Final answer
    x = 7,851.90

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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.