Home / 30,305.09-45,407.51-15,493.63

Finding the Fourth Proportional to 30,305.09, 45,407.51 and 15,493.63

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Solution

The fourth proportional to 30,305.09, 45,407.51 and 15,493.63 is: 23,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.09 : 45,407.51 = 15,493.63 : x
  2. Step 2: Convert to fraction form
    30,305.09/45,407.51 = 15,493.63/x
  3. Step 3: Cross multiply
    30,305.09x = 45,407.51 × 15,493.63
  4. Step 4: Simplify right side
    30,305.09x = 703,526,968.17
  5. Step 5: Solve for x
    x = 703,526,968.17/30,305.09
  6. Step 6: Final answer
    x = 23,214.82

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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.