Home / 18,031.64-24,881.20-10,072.88

Finding the Fourth Proportional to 18,031.64, 24,881.20 and 10,072.88

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Solution

The fourth proportional to 18,031.64, 24,881.20 and 10,072.88 is: 13,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.64 : 24,881.20 = 10,072.88 : x
  2. Step 2: Convert to fraction form
    18,031.64/24,881.20 = 10,072.88/x
  3. Step 3: Cross multiply
    18,031.64x = 24,881.20 × 10,072.88
  4. Step 4: Simplify right side
    18,031.64x = 250,625,341.86
  5. Step 5: Solve for x
    x = 250,625,341.86/18,031.64
  6. Step 6: Final answer
    x = 13,899.20

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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.