Home / 21,554.16-29,763.45-15,898.74

Finding the Fourth Proportional to 21,554.16, 29,763.45 and 15,898.74

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Solution

The fourth proportional to 21,554.16, 29,763.45 and 15,898.74 is: 21,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.16 : 29,763.45 = 15,898.74 : x
  2. Step 2: Convert to fraction form
    21,554.16/29,763.45 = 15,898.74/x
  3. Step 3: Cross multiply
    21,554.16x = 29,763.45 × 15,898.74
  4. Step 4: Simplify right side
    21,554.16x = 473,201,353.05
  5. Step 5: Solve for x
    x = 473,201,353.05/21,554.16
  6. Step 6: Final answer
    x = 21,954.06

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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.