Home / 28,619.92-42,913.14-13,029.04

Finding the Fourth Proportional to 28,619.92, 42,913.14 and 13,029.04

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Solution

The fourth proportional to 28,619.92, 42,913.14 and 13,029.04 is: 19,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.92 : 42,913.14 = 13,029.04 : x
  2. Step 2: Convert to fraction form
    28,619.92/42,913.14 = 13,029.04/x
  3. Step 3: Cross multiply
    28,619.92x = 42,913.14 × 13,029.04
  4. Step 4: Simplify right side
    28,619.92x = 559,117,017.59
  5. Step 5: Solve for x
    x = 559,117,017.59/28,619.92
  6. Step 6: Final answer
    x = 19,535.94

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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.