Home / 28,050.57-42,033.29-20,619.63

Finding the Fourth Proportional to 28,050.57, 42,033.29 and 20,619.63

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Solution

The fourth proportional to 28,050.57, 42,033.29 and 20,619.63 is: 30,898.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.57 : 42,033.29 = 20,619.63 : x
  2. Step 2: Convert to fraction form
    28,050.57/42,033.29 = 20,619.63/x
  3. Step 3: Cross multiply
    28,050.57x = 42,033.29 × 20,619.63
  4. Step 4: Simplify right side
    28,050.57x = 866,710,784.38
  5. Step 5: Solve for x
    x = 866,710,784.38/28,050.57
  6. Step 6: Final answer
    x = 30,898.15

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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.