Home / 21,314.06-29,402.70-15,030.08

Finding the Fourth Proportional to 21,314.06, 29,402.70 and 15,030.08

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Solution

The fourth proportional to 21,314.06, 29,402.70 and 15,030.08 is: 20,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.06 : 29,402.70 = 15,030.08 : x
  2. Step 2: Convert to fraction form
    21,314.06/29,402.70 = 15,030.08/x
  3. Step 3: Cross multiply
    21,314.06x = 29,402.70 × 15,030.08
  4. Step 4: Simplify right side
    21,314.06x = 441,924,933.22
  5. Step 5: Solve for x
    x = 441,924,933.22/21,314.06
  6. Step 6: Final answer
    x = 20,733.96

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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.