Home / 28,012.95-38,638.58-23,400.99

Finding the Fourth Proportional to 28,012.95, 38,638.58 and 23,400.99

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Solution

The fourth proportional to 28,012.95, 38,638.58 and 23,400.99 is: 32,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.95 : 38,638.58 = 23,400.99 : x
  2. Step 2: Convert to fraction form
    28,012.95/38,638.58 = 23,400.99/x
  3. Step 3: Cross multiply
    28,012.95x = 38,638.58 × 23,400.99
  4. Step 4: Simplify right side
    28,012.95x = 904,180,907.19
  5. Step 5: Solve for x
    x = 904,180,907.19/28,012.95
  6. Step 6: Final answer
    x = 32,277.25

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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.