Home / 20,457.24-28,108.65-16,258.20

Finding the Fourth Proportional to 20,457.24, 28,108.65 and 16,258.20

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Solution

The fourth proportional to 20,457.24, 28,108.65 and 16,258.20 is: 22,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.24 : 28,108.65 = 16,258.20 : x
  2. Step 2: Convert to fraction form
    20,457.24/28,108.65 = 16,258.20/x
  3. Step 3: Cross multiply
    20,457.24x = 28,108.65 × 16,258.20
  4. Step 4: Simplify right side
    20,457.24x = 456,996,053.43
  5. Step 5: Solve for x
    x = 456,996,053.43/20,457.24
  6. Step 6: Final answer
    x = 22,339.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.