Home / 21,410.76-29,550.35-14,690.84

Finding the Fourth Proportional to 21,410.76, 29,550.35 and 14,690.84

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Solution

The fourth proportional to 21,410.76, 29,550.35 and 14,690.84 is: 20,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.76 : 29,550.35 = 14,690.84 : x
  2. Step 2: Convert to fraction form
    21,410.76/29,550.35 = 14,690.84/x
  3. Step 3: Cross multiply
    21,410.76x = 29,550.35 × 14,690.84
  4. Step 4: Simplify right side
    21,410.76x = 434,119,390.34
  5. Step 5: Solve for x
    x = 434,119,390.34/21,410.76
  6. Step 6: Final answer
    x = 20,275.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.