Home / 19,539.89-29,309.42-4,748.88

Finding the Fourth Proportional to 19,539.89, 29,309.42 and 4,748.88

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Solution

The fourth proportional to 19,539.89, 29,309.42 and 4,748.88 is: 7,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.89 : 29,309.42 = 4,748.88 : x
  2. Step 2: Convert to fraction form
    19,539.89/29,309.42 = 4,748.88/x
  3. Step 3: Cross multiply
    19,539.89x = 29,309.42 × 4,748.88
  4. Step 4: Simplify right side
    19,539.89x = 139,186,894.71
  5. Step 5: Solve for x
    x = 139,186,894.71/19,539.89
  6. Step 6: Final answer
    x = 7,123.22

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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.