Home / 28,749.60-43,066.80-16,423.20

Finding the Fourth Proportional to 28,749.60, 43,066.80 and 16,423.20

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Solution

The fourth proportional to 28,749.60, 43,066.80 and 16,423.20 is: 24,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.60 : 43,066.80 = 16,423.20 : x
  2. Step 2: Convert to fraction form
    28,749.60/43,066.80 = 16,423.20/x
  3. Step 3: Cross multiply
    28,749.60x = 43,066.80 × 16,423.20
  4. Step 4: Simplify right side
    28,749.60x = 707,294,669.76
  5. Step 5: Solve for x
    x = 707,294,669.76/28,749.60
  6. Step 6: Final answer
    x = 24,601.90

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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.