Home / 28,315.47-42,492.35-10,784.85

Finding the Fourth Proportional to 28,315.47, 42,492.35 and 10,784.85

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Solution

The fourth proportional to 28,315.47, 42,492.35 and 10,784.85 is: 16,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315.47 : 42,492.35 = 10,784.85 : x
  2. Step 2: Convert to fraction form
    28,315.47/42,492.35 = 10,784.85/x
  3. Step 3: Cross multiply
    28,315.47x = 42,492.35 × 10,784.85
  4. Step 4: Simplify right side
    28,315.47x = 458,273,488.51
  5. Step 5: Solve for x
    x = 458,273,488.51/28,315.47
  6. Step 6: Final answer
    x = 16,184.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.