Home / 28,661.88-42,995.56-11,133.08

Finding the Fourth Proportional to 28,661.88, 42,995.56 and 11,133.08

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Solution

The fourth proportional to 28,661.88, 42,995.56 and 11,133.08 is: 16,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.88 : 42,995.56 = 11,133.08 : x
  2. Step 2: Convert to fraction form
    28,661.88/42,995.56 = 11,133.08/x
  3. Step 3: Cross multiply
    28,661.88x = 42,995.56 × 11,133.08
  4. Step 4: Simplify right side
    28,661.88x = 478,673,009.12
  5. Step 5: Solve for x
    x = 478,673,009.12/28,661.88
  6. Step 6: Final answer
    x = 16,700.68

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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.