Home / 30,005.77-45,015.36-11,285.97

Finding the Fourth Proportional to 30,005.77, 45,015.36 and 11,285.97

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Solution

The fourth proportional to 30,005.77, 45,015.36 and 11,285.97 is: 16,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.77 : 45,015.36 = 11,285.97 : x
  2. Step 2: Convert to fraction form
    30,005.77/45,015.36 = 11,285.97/x
  3. Step 3: Cross multiply
    30,005.77x = 45,015.36 × 11,285.97
  4. Step 4: Simplify right side
    30,005.77x = 508,041,720.99
  5. Step 5: Solve for x
    x = 508,041,720.99/30,005.77
  6. Step 6: Final answer
    x = 16,931.47

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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.