Home / 28,718.28-43,075.04-18,157.50

Finding the Fourth Proportional to 28,718.28, 43,075.04 and 18,157.50

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Solution

The fourth proportional to 28,718.28, 43,075.04 and 18,157.50 is: 27,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.28 : 43,075.04 = 18,157.50 : x
  2. Step 2: Convert to fraction form
    28,718.28/43,075.04 = 18,157.50/x
  3. Step 3: Cross multiply
    28,718.28x = 43,075.04 × 18,157.50
  4. Step 4: Simplify right side
    28,718.28x = 782,134,948.01
  5. Step 5: Solve for x
    x = 782,134,948.01/28,718.28
  6. Step 6: Final answer
    x = 27,234.74

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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.