Home / 21,119.19-31,654.65-10,010.16

Finding the Fourth Proportional to 21,119.19, 31,654.65 and 10,010.16

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Solution

The fourth proportional to 21,119.19, 31,654.65 and 10,010.16 is: 15,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119.19 : 31,654.65 = 10,010.16 : x
  2. Step 2: Convert to fraction form
    21,119.19/31,654.65 = 10,010.16/x
  3. Step 3: Cross multiply
    21,119.19x = 31,654.65 × 10,010.16
  4. Step 4: Simplify right side
    21,119.19x = 316,868,111.24
  5. Step 5: Solve for x
    x = 316,868,111.24/21,119.19
  6. Step 6: Final answer
    x = 15,003.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.