Home / 28,581.40-39,443.60-16,005.88

Finding the Fourth Proportional to 28,581.40, 39,443.60 and 16,005.88

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Solution

The fourth proportional to 28,581.40, 39,443.60 and 16,005.88 is: 22,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.40 : 39,443.60 = 16,005.88 : x
  2. Step 2: Convert to fraction form
    28,581.40/39,443.60 = 16,005.88/x
  3. Step 3: Cross multiply
    28,581.40x = 39,443.60 × 16,005.88
  4. Step 4: Simplify right side
    28,581.40x = 631,329,528.37
  5. Step 5: Solve for x
    x = 631,329,528.37/28,581.40
  6. Step 6: Final answer
    x = 22,088.82

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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.