Home / 30,156.40-45,200.73-14,153.79

Finding the Fourth Proportional to 30,156.40, 45,200.73 and 14,153.79

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Solution

The fourth proportional to 30,156.40, 45,200.73 and 14,153.79 is: 21,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.40 : 45,200.73 = 14,153.79 : x
  2. Step 2: Convert to fraction form
    30,156.40/45,200.73 = 14,153.79/x
  3. Step 3: Cross multiply
    30,156.40x = 45,200.73 × 14,153.79
  4. Step 4: Simplify right side
    30,156.40x = 639,761,640.27
  5. Step 5: Solve for x
    x = 639,761,640.27/30,156.40
  6. Step 6: Final answer
    x = 21,214.79

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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.