Home / 19,539.80-29,309.74-4,748.74

Finding the Fourth Proportional to 19,539.80, 29,309.74 and 4,748.74

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Solution

The fourth proportional to 19,539.80, 29,309.74 and 4,748.74 is: 7,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.80 : 29,309.74 = 4,748.74 : x
  2. Step 2: Convert to fraction form
    19,539.80/29,309.74 = 4,748.74/x
  3. Step 3: Cross multiply
    19,539.80x = 29,309.74 × 4,748.74
  4. Step 4: Simplify right side
    19,539.80x = 139,184,334.73
  5. Step 5: Solve for x
    x = 139,184,334.73/19,539.80
  6. Step 6: Final answer
    x = 7,123.12

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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.