Home / 28,368.50-42,559.07-8,648.59

Finding the Fourth Proportional to 28,368.50, 42,559.07 and 8,648.59

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Solution

The fourth proportional to 28,368.50, 42,559.07 and 8,648.59 is: 12,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.50 : 42,559.07 = 8,648.59 : x
  2. Step 2: Convert to fraction form
    28,368.50/42,559.07 = 8,648.59/x
  3. Step 3: Cross multiply
    28,368.50x = 42,559.07 × 8,648.59
  4. Step 4: Simplify right side
    28,368.50x = 368,075,947.21
  5. Step 5: Solve for x
    x = 368,075,947.21/28,368.50
  6. Step 6: Final answer
    x = 12,974.81

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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.