Home / 28,535.84-39,383.76-16,434.08

Finding the Fourth Proportional to 28,535.84, 39,383.76 and 16,434.08

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Solution

The fourth proportional to 28,535.84, 39,383.76 and 16,434.08 is: 22,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.84 : 39,383.76 = 16,434.08 : x
  2. Step 2: Convert to fraction form
    28,535.84/39,383.76 = 16,434.08/x
  3. Step 3: Cross multiply
    28,535.84x = 39,383.76 × 16,434.08
  4. Step 4: Simplify right side
    28,535.84x = 647,235,862.54
  5. Step 5: Solve for x
    x = 647,235,862.54/28,535.84
  6. Step 6: Final answer
    x = 22,681.51

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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.