Home / 39,155.42-54,037.14-22,159.64

Finding the Fourth Proportional to 39,155.42, 54,037.14 and 22,159.64

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Solution

The fourth proportional to 39,155.42, 54,037.14 and 22,159.64 is: 30,581.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.42 : 54,037.14 = 22,159.64 : x
  2. Step 2: Convert to fraction form
    39,155.42/54,037.14 = 22,159.64/x
  3. Step 3: Cross multiply
    39,155.42x = 54,037.14 × 22,159.64
  4. Step 4: Simplify right side
    39,155.42x = 1,197,443,569.03
  5. Step 5: Solve for x
    x = 1,197,443,569.03/39,155.42
  6. Step 6: Final answer
    x = 30,581.81

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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.