Home / 20,453.42-30,655.02-10,587.08

Finding the Fourth Proportional to 20,453.42, 30,655.02 and 10,587.08

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Solution

The fourth proportional to 20,453.42, 30,655.02 and 10,587.08 is: 15,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.42 : 30,655.02 = 10,587.08 : x
  2. Step 2: Convert to fraction form
    20,453.42/30,655.02 = 10,587.08/x
  3. Step 3: Cross multiply
    20,453.42x = 30,655.02 × 10,587.08
  4. Step 4: Simplify right side
    20,453.42x = 324,547,149.14
  5. Step 5: Solve for x
    x = 324,547,149.14/20,453.42
  6. Step 6: Final answer
    x = 15,867.62

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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.