Home / 17,988.05-26,981.90-10,090.55

Finding the Fourth Proportional to 17,988.05, 26,981.90 and 10,090.55

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Solution

The fourth proportional to 17,988.05, 26,981.90 and 10,090.55 is: 15,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.05 : 26,981.90 = 10,090.55 : x
  2. Step 2: Convert to fraction form
    17,988.05/26,981.90 = 10,090.55/x
  3. Step 3: Cross multiply
    17,988.05x = 26,981.90 × 10,090.55
  4. Step 4: Simplify right side
    17,988.05x = 272,262,025.68
  5. Step 5: Solve for x
    x = 272,262,025.68/17,988.05
  6. Step 6: Final answer
    x = 15,135.72

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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.