Home / 28,368.36-39,144.06-16,432.86

Finding the Fourth Proportional to 28,368.36, 39,144.06 and 16,432.86

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Solution

The fourth proportional to 28,368.36, 39,144.06 and 16,432.86 is: 22,674.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.36 : 39,144.06 = 16,432.86 : x
  2. Step 2: Convert to fraction form
    28,368.36/39,144.06 = 16,432.86/x
  3. Step 3: Cross multiply
    28,368.36x = 39,144.06 × 16,432.86
  4. Step 4: Simplify right side
    28,368.36x = 643,248,857.81
  5. Step 5: Solve for x
    x = 643,248,857.81/28,368.36
  6. Step 6: Final answer
    x = 22,674.87

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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.