Home / 39,070.96-53,914.04-21,840.08

Finding the Fourth Proportional to 39,070.96, 53,914.04 and 21,840.08

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Solution

The fourth proportional to 39,070.96, 53,914.04 and 21,840.08 is: 30,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070.96 : 53,914.04 = 21,840.08 : x
  2. Step 2: Convert to fraction form
    39,070.96/53,914.04 = 21,840.08/x
  3. Step 3: Cross multiply
    39,070.96x = 53,914.04 × 21,840.08
  4. Step 4: Simplify right side
    39,070.96x = 1,177,486,946.72
  5. Step 5: Solve for x
    x = 1,177,486,946.72/39,070.96
  6. Step 6: Final answer
    x = 30,137.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.