Home / 28,273.16-42,416.56-19,969.40

Finding the Fourth Proportional to 28,273.16, 42,416.56 and 19,969.40

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Solution

The fourth proportional to 28,273.16, 42,416.56 and 19,969.40 is: 29,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.16 : 42,416.56 = 19,969.40 : x
  2. Step 2: Convert to fraction form
    28,273.16/42,416.56 = 19,969.40/x
  3. Step 3: Cross multiply
    28,273.16x = 42,416.56 × 19,969.40
  4. Step 4: Simplify right side
    28,273.16x = 847,033,253.26
  5. Step 5: Solve for x
    x = 847,033,253.26/28,273.16
  6. Step 6: Final answer
    x = 29,958.92

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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.