Home / 30,590.32-45,910.36-15,803.56

Finding the Fourth Proportional to 30,590.32, 45,910.36 and 15,803.56

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Solution

The fourth proportional to 30,590.32, 45,910.36 and 15,803.56 is: 23,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.32 : 45,910.36 = 15,803.56 : x
  2. Step 2: Convert to fraction form
    30,590.32/45,910.36 = 15,803.56/x
  3. Step 3: Cross multiply
    30,590.32x = 45,910.36 × 15,803.56
  4. Step 4: Simplify right side
    30,590.32x = 725,547,128.88
  5. Step 5: Solve for x
    x = 725,547,128.88/30,590.32
  6. Step 6: Final answer
    x = 23,718.19

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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.