Home / 15,044.12-20,741.64-10,320.20

Finding the Fourth Proportional to 15,044.12, 20,741.64 and 10,320.20

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Solution

The fourth proportional to 15,044.12, 20,741.64 and 10,320.20 is: 14,228.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.12 : 20,741.64 = 10,320.20 : x
  2. Step 2: Convert to fraction form
    15,044.12/20,741.64 = 10,320.20/x
  3. Step 3: Cross multiply
    15,044.12x = 20,741.64 × 10,320.20
  4. Step 4: Simplify right side
    15,044.12x = 214,057,873.13
  5. Step 5: Solve for x
    x = 214,057,873.13/15,044.12
  6. Step 6: Final answer
    x = 14,228.67

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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.