Home / 28,205.10-42,307.65-25,613.10

Finding the Fourth Proportional to 28,205.10, 42,307.65 and 25,613.10

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Solution

The fourth proportional to 28,205.10, 42,307.65 and 25,613.10 is: 38,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.10 : 42,307.65 = 25,613.10 : x
  2. Step 2: Convert to fraction form
    28,205.10/42,307.65 = 25,613.10/x
  3. Step 3: Cross multiply
    28,205.10x = 42,307.65 × 25,613.10
  4. Step 4: Simplify right side
    28,205.10x = 1,083,630,070.22
  5. Step 5: Solve for x
    x = 1,083,630,070.22/28,205.10
  6. Step 6: Final answer
    x = 38,419.65

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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.