Home / 28,131.59-38,803.28-18,044.06

Finding the Fourth Proportional to 28,131.59, 38,803.28 and 18,044.06

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Solution

The fourth proportional to 28,131.59, 38,803.28 and 18,044.06 is: 24,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.59 : 38,803.28 = 18,044.06 : x
  2. Step 2: Convert to fraction form
    28,131.59/38,803.28 = 18,044.06/x
  3. Step 3: Cross multiply
    28,131.59x = 38,803.28 × 18,044.06
  4. Step 4: Simplify right side
    28,131.59x = 700,168,428.28
  5. Step 5: Solve for x
    x = 700,168,428.28/28,131.59
  6. Step 6: Final answer
    x = 24,889.05

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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.