Home / 21,160.04-31,741.74-7,830.27

Finding the Fourth Proportional to 21,160.04, 31,741.74 and 7,830.27

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Solution

The fourth proportional to 21,160.04, 31,741.74 and 7,830.27 is: 11,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.04 : 31,741.74 = 7,830.27 : x
  2. Step 2: Convert to fraction form
    21,160.04/31,741.74 = 7,830.27/x
  3. Step 3: Cross multiply
    21,160.04x = 31,741.74 × 7,830.27
  4. Step 4: Simplify right side
    21,160.04x = 248,546,394.47
  5. Step 5: Solve for x
    x = 248,546,394.47/21,160.04
  6. Step 6: Final answer
    x = 11,746.03

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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.