Home / 20,459.12-28,111.22-16,260.08

Finding the Fourth Proportional to 20,459.12, 28,111.22 and 16,260.08

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Solution

The fourth proportional to 20,459.12, 28,111.22 and 16,260.08 is: 22,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.12 : 28,111.22 = 16,260.08 : x
  2. Step 2: Convert to fraction form
    20,459.12/28,111.22 = 16,260.08/x
  3. Step 3: Cross multiply
    20,459.12x = 28,111.22 × 16,260.08
  4. Step 4: Simplify right side
    20,459.12x = 457,090,586.19
  5. Step 5: Solve for x
    x = 457,090,586.19/20,459.12
  6. Step 6: Final answer
    x = 22,341.66

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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.