Home / 28,445.80-42,701.10-16,765.60

Finding the Fourth Proportional to 28,445.80, 42,701.10 and 16,765.60

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Solution

The fourth proportional to 28,445.80, 42,701.10 and 16,765.60 is: 25,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.80 : 42,701.10 = 16,765.60 : x
  2. Step 2: Convert to fraction form
    28,445.80/42,701.10 = 16,765.60/x
  3. Step 3: Cross multiply
    28,445.80x = 42,701.10 × 16,765.60
  4. Step 4: Simplify right side
    28,445.80x = 715,909,562.16
  5. Step 5: Solve for x
    x = 715,909,562.16/28,445.80
  6. Step 6: Final answer
    x = 25,167.50

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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.