Home / 28,925.28-39,917.64-16,178.16

Finding the Fourth Proportional to 28,925.28, 39,917.64 and 16,178.16

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Solution

The fourth proportional to 28,925.28, 39,917.64 and 16,178.16 is: 22,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.28 : 39,917.64 = 16,178.16 : x
  2. Step 2: Convert to fraction form
    28,925.28/39,917.64 = 16,178.16/x
  3. Step 3: Cross multiply
    28,925.28x = 39,917.64 × 16,178.16
  4. Step 4: Simplify right side
    28,925.28x = 645,793,966.74
  5. Step 5: Solve for x
    x = 645,793,966.74/28,925.28
  6. Step 6: Final answer
    x = 22,326.28

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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.