Home / 30,256.80-45,402.96-12,725.28

Finding the Fourth Proportional to 30,256.80, 45,402.96 and 12,725.28

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Solution

The fourth proportional to 30,256.80, 45,402.96 and 12,725.28 is: 19,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,256.80 : 45,402.96 = 12,725.28 : x
  2. Step 2: Convert to fraction form
    30,256.80/45,402.96 = 12,725.28/x
  3. Step 3: Cross multiply
    30,256.80x = 45,402.96 × 12,725.28
  4. Step 4: Simplify right side
    30,256.80x = 577,765,378.83
  5. Step 5: Solve for x
    x = 577,765,378.83/30,256.80
  6. Step 6: Final answer
    x = 19,095.39

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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.