Home / 21,341.30-29,428.98-14,168.62

Finding the Fourth Proportional to 21,341.30, 29,428.98 and 14,168.62

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Solution

The fourth proportional to 21,341.30, 29,428.98 and 14,168.62 is: 19,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.30 : 29,428.98 = 14,168.62 : x
  2. Step 2: Convert to fraction form
    21,341.30/29,428.98 = 14,168.62/x
  3. Step 3: Cross multiply
    21,341.30x = 29,428.98 × 14,168.62
  4. Step 4: Simplify right side
    21,341.30x = 416,968,034.61
  5. Step 5: Solve for x
    x = 416,968,034.61/21,341.30
  6. Step 6: Final answer
    x = 19,538.08

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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.