Home / 21,234.59-29,303.02-11,802.95

Finding the Fourth Proportional to 21,234.59, 29,303.02 and 11,802.95

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Solution

The fourth proportional to 21,234.59, 29,303.02 and 11,802.95 is: 16,287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.59 : 29,303.02 = 11,802.95 : x
  2. Step 2: Convert to fraction form
    21,234.59/29,303.02 = 11,802.95/x
  3. Step 3: Cross multiply
    21,234.59x = 29,303.02 × 11,802.95
  4. Step 4: Simplify right side
    21,234.59x = 345,862,123.66
  5. Step 5: Solve for x
    x = 345,862,123.66/21,234.59
  6. Step 6: Final answer
    x = 16,287.67

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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.