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Finding the Fourth Proportional to 30,707.64, 45,987.64 and 17,520.03

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Solution

The fourth proportional to 30,707.64, 45,987.64 and 17,520.03 is: 26,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,707.64 : 45,987.64 = 17,520.03 : x
  2. Step 2: Convert to fraction form
    30,707.64/45,987.64 = 17,520.03/x
  3. Step 3: Cross multiply
    30,707.64x = 45,987.64 × 17,520.03
  4. Step 4: Simplify right side
    30,707.64x = 805,704,832.43
  5. Step 5: Solve for x
    x = 805,704,832.43/30,707.64
  6. Step 6: Final answer
    x = 26,237.93

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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.