Home / 28,434.59-42,652.06-12,635.91

Finding the Fourth Proportional to 28,434.59, 42,652.06 and 12,635.91

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Solution

The fourth proportional to 28,434.59, 42,652.06 and 12,635.91 is: 18,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.59 : 42,652.06 = 12,635.91 : x
  2. Step 2: Convert to fraction form
    28,434.59/42,652.06 = 12,635.91/x
  3. Step 3: Cross multiply
    28,434.59x = 42,652.06 × 12,635.91
  4. Step 4: Simplify right side
    28,434.59x = 538,947,315.03
  5. Step 5: Solve for x
    x = 538,947,315.03/28,434.59
  6. Step 6: Final answer
    x = 18,953.93

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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.