Home / 39,320.64-54,260.28-22,320.32

Finding the Fourth Proportional to 39,320.64, 54,260.28 and 22,320.32

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Solution

The fourth proportional to 39,320.64, 54,260.28 and 22,320.32 is: 30,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,320.64 : 54,260.28 = 22,320.32 : x
  2. Step 2: Convert to fraction form
    39,320.64/54,260.28 = 22,320.32/x
  3. Step 3: Cross multiply
    39,320.64x = 54,260.28 × 22,320.32
  4. Step 4: Simplify right side
    39,320.64x = 1,211,106,812.89
  5. Step 5: Solve for x
    x = 1,211,106,812.89/39,320.64
  6. Step 6: Final answer
    x = 30,800.79

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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.