Home / 21,277.76-29,363.18-12,325.07

Finding the Fourth Proportional to 21,277.76, 29,363.18 and 12,325.07

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Solution

The fourth proportional to 21,277.76, 29,363.18 and 12,325.07 is: 17,008.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.76 : 29,363.18 = 12,325.07 : x
  2. Step 2: Convert to fraction form
    21,277.76/29,363.18 = 12,325.07/x
  3. Step 3: Cross multiply
    21,277.76x = 29,363.18 × 12,325.07
  4. Step 4: Simplify right side
    21,277.76x = 361,903,260.71
  5. Step 5: Solve for x
    x = 361,903,260.71/21,277.76
  6. Step 6: Final answer
    x = 17,008.53

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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.