Home / 28,263.22-42,396.54-9,289.12

Finding the Fourth Proportional to 28,263.22, 42,396.54 and 9,289.12

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Solution

The fourth proportional to 28,263.22, 42,396.54 and 9,289.12 is: 13,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.22 : 42,396.54 = 9,289.12 : x
  2. Step 2: Convert to fraction form
    28,263.22/42,396.54 = 9,289.12/x
  3. Step 3: Cross multiply
    28,263.22x = 42,396.54 × 9,289.12
  4. Step 4: Simplify right side
    28,263.22x = 393,826,547.64
  5. Step 5: Solve for x
    x = 393,826,547.64/28,263.22
  6. Step 6: Final answer
    x = 13,934.24

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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.