Home / 21,359.16-29,489.50-19,117.14

Finding the Fourth Proportional to 21,359.16, 29,489.50 and 19,117.14

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Solution

The fourth proportional to 21,359.16, 29,489.50 and 19,117.14 is: 26,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.16 : 29,489.50 = 19,117.14 : x
  2. Step 2: Convert to fraction form
    21,359.16/29,489.50 = 19,117.14/x
  3. Step 3: Cross multiply
    21,359.16x = 29,489.50 × 19,117.14
  4. Step 4: Simplify right side
    21,359.16x = 563,754,900.03
  5. Step 5: Solve for x
    x = 563,754,900.03/21,359.16
  6. Step 6: Final answer
    x = 26,394.06

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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.