Home / 39,123.68-53,990.16-22,356.32

Finding the Fourth Proportional to 39,123.68, 53,990.16 and 22,356.32

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Solution

The fourth proportional to 39,123.68, 53,990.16 and 22,356.32 is: 30,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,123.68 : 53,990.16 = 22,356.32 : x
  2. Step 2: Convert to fraction form
    39,123.68/53,990.16 = 22,356.32/x
  3. Step 3: Cross multiply
    39,123.68x = 53,990.16 × 22,356.32
  4. Step 4: Simplify right side
    39,123.68x = 1,207,021,293.81
  5. Step 5: Solve for x
    x = 1,207,021,293.81/39,123.68
  6. Step 6: Final answer
    x = 30,851.43

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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.