Home / 28,152.80-42,241.44-17,646.89

Finding the Fourth Proportional to 28,152.80, 42,241.44 and 17,646.89

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Solution

The fourth proportional to 28,152.80, 42,241.44 and 17,646.89 is: 26,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.80 : 42,241.44 = 17,646.89 : x
  2. Step 2: Convert to fraction form
    28,152.80/42,241.44 = 17,646.89/x
  3. Step 3: Cross multiply
    28,152.80x = 42,241.44 × 17,646.89
  4. Step 4: Simplify right side
    28,152.80x = 745,430,045.12
  5. Step 5: Solve for x
    x = 745,430,045.12/28,152.80
  6. Step 6: Final answer
    x = 26,478.01

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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.