Home / 28,661.51-42,977.64-16,838.38

Finding the Fourth Proportional to 28,661.51, 42,977.64 and 16,838.38

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Solution

The fourth proportional to 28,661.51, 42,977.64 and 16,838.38 is: 25,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.51 : 42,977.64 = 16,838.38 : x
  2. Step 2: Convert to fraction form
    28,661.51/42,977.64 = 16,838.38/x
  3. Step 3: Cross multiply
    28,661.51x = 42,977.64 × 16,838.38
  4. Step 4: Simplify right side
    28,661.51x = 723,673,833.82
  5. Step 5: Solve for x
    x = 723,673,833.82/28,661.51
  6. Step 6: Final answer
    x = 25,248.98

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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.