Home / 19,528.68-29,328.56-18,735.89

Finding the Fourth Proportional to 19,528.68, 29,328.56 and 18,735.89

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Solution

The fourth proportional to 19,528.68, 29,328.56 and 18,735.89 is: 28,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,528.68 : 29,328.56 = 18,735.89 : x
  2. Step 2: Convert to fraction form
    19,528.68/29,328.56 = 18,735.89/x
  3. Step 3: Cross multiply
    19,528.68x = 29,328.56 × 18,735.89
  4. Step 4: Simplify right side
    19,528.68x = 549,496,433.70
  5. Step 5: Solve for x
    x = 549,496,433.70/19,528.68
  6. Step 6: Final answer
    x = 28,137.92

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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.