Home / 20,424.02-30,641.58-7,944.53

Finding the Fourth Proportional to 20,424.02, 30,641.58 and 7,944.53

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Solution

The fourth proportional to 20,424.02, 30,641.58 and 7,944.53 is: 11,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.02 : 30,641.58 = 7,944.53 : x
  2. Step 2: Convert to fraction form
    20,424.02/30,641.58 = 7,944.53/x
  3. Step 3: Cross multiply
    20,424.02x = 30,641.58 × 7,944.53
  4. Step 4: Simplify right side
    20,424.02x = 243,432,798.35
  5. Step 5: Solve for x
    x = 243,432,798.35/20,424.02
  6. Step 6: Final answer
    x = 11,918.95

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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.