Home / 20,637.37-28,479.32-11,206.00

Finding the Fourth Proportional to 20,637.37, 28,479.32 and 11,206.00

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Solution

The fourth proportional to 20,637.37, 28,479.32 and 11,206.00 is: 15,464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.37 : 28,479.32 = 11,206.00 : x
  2. Step 2: Convert to fraction form
    20,637.37/28,479.32 = 11,206.00/x
  3. Step 3: Cross multiply
    20,637.37x = 28,479.32 × 11,206.00
  4. Step 4: Simplify right side
    20,637.37x = 319,139,174.71
  5. Step 5: Solve for x
    x = 319,139,174.71/20,637.37
  6. Step 6: Final answer
    x = 15,464.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.