Home / 28,852-39,815.76-20,483.08

Finding the Fourth Proportional to 28,852, 39,815.76 and 20,483.08

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Solution

The fourth proportional to 28,852, 39,815.76 and 20,483.08 is: 28,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,852 : 39,815.76 = 20,483.08 : x
  2. Step 2: Convert to fraction form
    28,852/39,815.76 = 20,483.08/x
  3. Step 3: Cross multiply
    28,852x = 39,815.76 × 20,483.08
  4. Step 4: Simplify right side
    28,852x = 815,549,397.34
  5. Step 5: Solve for x
    x = 815,549,397.34/28,852
  6. Step 6: Final answer
    x = 28,266.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.