Home / 28,158.68-42,153.87-17,031.71

Finding the Fourth Proportional to 28,158.68, 42,153.87 and 17,031.71

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Solution

The fourth proportional to 28,158.68, 42,153.87 and 17,031.71 is: 25,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.68 : 42,153.87 = 17,031.71 : x
  2. Step 2: Convert to fraction form
    28,158.68/42,153.87 = 17,031.71/x
  3. Step 3: Cross multiply
    28,158.68x = 42,153.87 × 17,031.71
  4. Step 4: Simplify right side
    28,158.68x = 717,952,489.22
  5. Step 5: Solve for x
    x = 717,952,489.22/28,158.68
  6. Step 6: Final answer
    x = 25,496.67

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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.