Home / 28,823.60-43,300.20-20,075.60

Finding the Fourth Proportional to 28,823.60, 43,300.20 and 20,075.60

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Solution

The fourth proportional to 28,823.60, 43,300.20 and 20,075.60 is: 30,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.60 : 43,300.20 = 20,075.60 : x
  2. Step 2: Convert to fraction form
    28,823.60/43,300.20 = 20,075.60/x
  3. Step 3: Cross multiply
    28,823.60x = 43,300.20 × 20,075.60
  4. Step 4: Simplify right side
    28,823.60x = 869,277,495.12
  5. Step 5: Solve for x
    x = 869,277,495.12/28,823.60
  6. Step 6: Final answer
    x = 30,158.53

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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.