Home / 28,030.21-42,044.41-11,385.32

Finding the Fourth Proportional to 28,030.21, 42,044.41 and 11,385.32

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Solution

The fourth proportional to 28,030.21, 42,044.41 and 11,385.32 is: 17,077.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.21 : 42,044.41 = 11,385.32 : x
  2. Step 2: Convert to fraction form
    28,030.21/42,044.41 = 11,385.32/x
  3. Step 3: Cross multiply
    28,030.21x = 42,044.41 × 11,385.32
  4. Step 4: Simplify right side
    28,030.21x = 478,689,033.60
  5. Step 5: Solve for x
    x = 478,689,033.60/28,030.21
  6. Step 6: Final answer
    x = 17,077.61

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1.5x scale

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.