Home / 20,281.60-30,415.02-7,795.18

Finding the Fourth Proportional to 20,281.60, 30,415.02 and 7,795.18

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Solution

The fourth proportional to 20,281.60, 30,415.02 and 7,795.18 is: 11,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.60 : 30,415.02 = 7,795.18 : x
  2. Step 2: Convert to fraction form
    20,281.60/30,415.02 = 7,795.18/x
  3. Step 3: Cross multiply
    20,281.60x = 30,415.02 × 7,795.18
  4. Step 4: Simplify right side
    20,281.60x = 237,090,555.60
  5. Step 5: Solve for x
    x = 237,090,555.60/20,281.60
  6. Step 6: Final answer
    x = 11,689.93

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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.