Home / 21,064.32-29,068.30-11,503.84

Finding the Fourth Proportional to 21,064.32, 29,068.30 and 11,503.84

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Solution

The fourth proportional to 21,064.32, 29,068.30 and 11,503.84 is: 15,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.32 : 29,068.30 = 11,503.84 : x
  2. Step 2: Convert to fraction form
    21,064.32/29,068.30 = 11,503.84/x
  3. Step 3: Cross multiply
    21,064.32x = 29,068.30 × 11,503.84
  4. Step 4: Simplify right side
    21,064.32x = 334,397,072.27
  5. Step 5: Solve for x
    x = 334,397,072.27/21,064.32
  6. Step 6: Final answer
    x = 15,875.05

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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.