Home / 20,775.08-31,162.64-16,459.40

Finding the Fourth Proportional to 20,775.08, 31,162.64 and 16,459.40

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Solution

The fourth proportional to 20,775.08, 31,162.64 and 16,459.40 is: 24,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775.08 : 31,162.64 = 16,459.40 : x
  2. Step 2: Convert to fraction form
    20,775.08/31,162.64 = 16,459.40/x
  3. Step 3: Cross multiply
    20,775.08x = 31,162.64 × 16,459.40
  4. Step 4: Simplify right side
    20,775.08x = 512,918,356.82
  5. Step 5: Solve for x
    x = 512,918,356.82/20,775.08
  6. Step 6: Final answer
    x = 24,689.12

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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.