Home / 20,203.93-30,318.86-9,810.01

Finding the Fourth Proportional to 20,203.93, 30,318.86 and 9,810.01

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Solution

The fourth proportional to 20,203.93, 30,318.86 and 9,810.01 is: 14,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.93 : 30,318.86 = 9,810.01 : x
  2. Step 2: Convert to fraction form
    20,203.93/30,318.86 = 9,810.01/x
  3. Step 3: Cross multiply
    20,203.93x = 30,318.86 × 9,810.01
  4. Step 4: Simplify right side
    20,203.93x = 297,428,319.79
  5. Step 5: Solve for x
    x = 297,428,319.79/20,203.93
  6. Step 6: Final answer
    x = 14,721.31

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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.