Home / 20,528.61-30,806.70-8,047.05

Finding the Fourth Proportional to 20,528.61, 30,806.70 and 8,047.05

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Solution

The fourth proportional to 20,528.61, 30,806.70 and 8,047.05 is: 12,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.61 : 30,806.70 = 8,047.05 : x
  2. Step 2: Convert to fraction form
    20,528.61/30,806.70 = 8,047.05/x
  3. Step 3: Cross multiply
    20,528.61x = 30,806.70 × 8,047.05
  4. Step 4: Simplify right side
    20,528.61x = 247,903,055.24
  5. Step 5: Solve for x
    x = 247,903,055.24/20,528.61
  6. Step 6: Final answer
    x = 12,075.98

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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.