Home / 28,287.81-39,032.83-16,348.84

Finding the Fourth Proportional to 28,287.81, 39,032.83 and 16,348.84

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Solution

The fourth proportional to 28,287.81, 39,032.83 and 16,348.84 is: 22,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.81 : 39,032.83 = 16,348.84 : x
  2. Step 2: Convert to fraction form
    28,287.81/39,032.83 = 16,348.84/x
  3. Step 3: Cross multiply
    28,287.81x = 39,032.83 × 16,348.84
  4. Step 4: Simplify right side
    28,287.81x = 638,141,492.42
  5. Step 5: Solve for x
    x = 638,141,492.42/28,287.81
  6. Step 6: Final answer
    x = 22,558.89

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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.