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Finding the Fourth Proportional to 30,360.64, 45,504.63 and 21,462.51

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Solution

The fourth proportional to 30,360.64, 45,504.63 and 21,462.51 is: 32,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.64 : 45,504.63 = 21,462.51 : x
  2. Step 2: Convert to fraction form
    30,360.64/45,504.63 = 21,462.51/x
  3. Step 3: Cross multiply
    30,360.64x = 45,504.63 × 21,462.51
  4. Step 4: Simplify right side
    30,360.64x = 976,643,582.87
  5. Step 5: Solve for x
    x = 976,643,582.87/30,360.64
  6. Step 6: Final answer
    x = 32,168.08

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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.