Home / 28,206.30-42,325.65-10,688.70

Finding the Fourth Proportional to 28,206.30, 42,325.65 and 10,688.70

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Solution

The fourth proportional to 28,206.30, 42,325.65 and 10,688.70 is: 16,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.30 : 42,325.65 = 10,688.70 : x
  2. Step 2: Convert to fraction form
    28,206.30/42,325.65 = 10,688.70/x
  3. Step 3: Cross multiply
    28,206.30x = 42,325.65 × 10,688.70
  4. Step 4: Simplify right side
    28,206.30x = 452,406,175.16
  5. Step 5: Solve for x
    x = 452,406,175.16/28,206.30
  6. Step 6: Final answer
    x = 16,039.19

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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.