Home / 15,031.53-20,750.38-10,727.89

Finding the Fourth Proportional to 15,031.53, 20,750.38 and 10,727.89

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Solution

The fourth proportional to 15,031.53, 20,750.38 and 10,727.89 is: 14,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.53 : 20,750.38 = 10,727.89 : x
  2. Step 2: Convert to fraction form
    15,031.53/20,750.38 = 10,727.89/x
  3. Step 3: Cross multiply
    15,031.53x = 20,750.38 × 10,727.89
  4. Step 4: Simplify right side
    15,031.53x = 222,607,715.40
  5. Step 5: Solve for x
    x = 222,607,715.40/15,031.53
  6. Step 6: Final answer
    x = 14,809.39

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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.