Home / 30,508.06-45,762.36-10,786.90

Finding the Fourth Proportional to 30,508.06, 45,762.36 and 10,786.90

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Solution

The fourth proportional to 30,508.06, 45,762.36 and 10,786.90 is: 16,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.06 : 45,762.36 = 10,786.90 : x
  2. Step 2: Convert to fraction form
    30,508.06/45,762.36 = 10,786.90/x
  3. Step 3: Cross multiply
    30,508.06x = 45,762.36 × 10,786.90
  4. Step 4: Simplify right side
    30,508.06x = 493,634,001.08
  5. Step 5: Solve for x
    x = 493,634,001.08/30,508.06
  6. Step 6: Final answer
    x = 16,180.45

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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.