Home / 28,030.60-42,110.70-19,282.60

Finding the Fourth Proportional to 28,030.60, 42,110.70 and 19,282.60

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Solution

The fourth proportional to 28,030.60, 42,110.70 and 19,282.60 is: 28,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.60 : 42,110.70 = 19,282.60 : x
  2. Step 2: Convert to fraction form
    28,030.60/42,110.70 = 19,282.60/x
  3. Step 3: Cross multiply
    28,030.60x = 42,110.70 × 19,282.60
  4. Step 4: Simplify right side
    28,030.60x = 812,003,783.82
  5. Step 5: Solve for x
    x = 812,003,783.82/28,030.60
  6. Step 6: Final answer
    x = 28,968.48

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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.