Home / 19,133.40-28,721.70-14,770.20

Finding the Fourth Proportional to 19,133.40, 28,721.70 and 14,770.20

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Solution

The fourth proportional to 19,133.40, 28,721.70 and 14,770.20 is: 22,171.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.40 : 28,721.70 = 14,770.20 : x
  2. Step 2: Convert to fraction form
    19,133.40/28,721.70 = 14,770.20/x
  3. Step 3: Cross multiply
    19,133.40x = 28,721.70 × 14,770.20
  4. Step 4: Simplify right side
    19,133.40x = 424,225,253.34
  5. Step 5: Solve for x
    x = 424,225,253.34/19,133.40
  6. Step 6: Final answer
    x = 22,171.97

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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.