Home / 20,023.02-30,038.67-7,542.90

Finding the Fourth Proportional to 20,023.02, 30,038.67 and 7,542.90

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Solution

The fourth proportional to 20,023.02, 30,038.67 and 7,542.90 is: 11,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.02 : 30,038.67 = 7,542.90 : x
  2. Step 2: Convert to fraction form
    20,023.02/30,038.67 = 7,542.90/x
  3. Step 3: Cross multiply
    20,023.02x = 30,038.67 × 7,542.90
  4. Step 4: Simplify right side
    20,023.02x = 226,578,683.94
  5. Step 5: Solve for x
    x = 226,578,683.94/20,023.02
  6. Step 6: Final answer
    x = 11,315.91

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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.