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Finding the Fourth Proportional to 28,303.98, 42,455.92 and 7,527.48

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Solution

The fourth proportional to 28,303.98, 42,455.92 and 7,527.48 is: 11,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.98 : 42,455.92 = 7,527.48 : x
  2. Step 2: Convert to fraction form
    28,303.98/42,455.92 = 7,527.48/x
  3. Step 3: Cross multiply
    28,303.98x = 42,455.92 × 7,527.48
  4. Step 4: Simplify right side
    28,303.98x = 319,586,088.68
  5. Step 5: Solve for x
    x = 319,586,088.68/28,303.98
  6. Step 6: Final answer
    x = 11,291.21

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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.