Home / 28,135.50-42,138.63-14,052.30

Finding the Fourth Proportional to 28,135.50, 42,138.63 and 14,052.30

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Solution

The fourth proportional to 28,135.50, 42,138.63 and 14,052.30 is: 21,046.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.50 : 42,138.63 = 14,052.30 : x
  2. Step 2: Convert to fraction form
    28,135.50/42,138.63 = 14,052.30/x
  3. Step 3: Cross multiply
    28,135.50x = 42,138.63 × 14,052.30
  4. Step 4: Simplify right side
    28,135.50x = 592,144,670.35
  5. Step 5: Solve for x
    x = 592,144,670.35/28,135.50
  6. Step 6: Final answer
    x = 21,046.18

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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.