Home / 28,206.77-42,317.16-19,903.01

Finding the Fourth Proportional to 28,206.77, 42,317.16 and 19,903.01

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Solution

The fourth proportional to 28,206.77, 42,317.16 and 19,903.01 is: 29,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.77 : 42,317.16 = 19,903.01 : x
  2. Step 2: Convert to fraction form
    28,206.77/42,317.16 = 19,903.01/x
  3. Step 3: Cross multiply
    28,206.77x = 42,317.16 × 19,903.01
  4. Step 4: Simplify right side
    28,206.77x = 842,238,647.07
  5. Step 5: Solve for x
    x = 842,238,647.07/28,206.77
  6. Step 6: Final answer
    x = 29,859.46

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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.