Home / 28,246.59-42,321.29-19,911.69

Finding the Fourth Proportional to 28,246.59, 42,321.29 and 19,911.69

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Solution

The fourth proportional to 28,246.59, 42,321.29 and 19,911.69 is: 29,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.59 : 42,321.29 = 19,911.69 : x
  2. Step 2: Convert to fraction form
    28,246.59/42,321.29 = 19,911.69/x
  3. Step 3: Cross multiply
    28,246.59x = 42,321.29 × 19,911.69
  4. Step 4: Simplify right side
    28,246.59x = 842,688,307.32
  5. Step 5: Solve for x
    x = 842,688,307.32/28,246.59
  6. Step 6: Final answer
    x = 29,833.28

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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.