Home / 30,501.36-45,756.60-10,780.09

Finding the Fourth Proportional to 30,501.36, 45,756.60 and 10,780.09

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Solution

The fourth proportional to 30,501.36, 45,756.60 and 10,780.09 is: 16,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,501.36 : 45,756.60 = 10,780.09 : x
  2. Step 2: Convert to fraction form
    30,501.36/45,756.60 = 10,780.09/x
  3. Step 3: Cross multiply
    30,501.36x = 45,756.60 × 10,780.09
  4. Step 4: Simplify right side
    30,501.36x = 493,260,111.28
  5. Step 5: Solve for x
    x = 493,260,111.28/30,501.36
  6. Step 6: Final answer
    x = 16,171.74

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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.