Home / 51,023.12-70,423.32-28,370.05

Finding the Fourth Proportional to 51,023.12, 70,423.32 and 28,370.05

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Solution

The fourth proportional to 51,023.12, 70,423.32 and 28,370.05 is: 39,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,023.12 : 70,423.32 = 28,370.05 : x
  2. Step 2: Convert to fraction form
    51,023.12/70,423.32 = 28,370.05/x
  3. Step 3: Cross multiply
    51,023.12x = 70,423.32 × 28,370.05
  4. Step 4: Simplify right side
    51,023.12x = 1,997,913,039.90
  5. Step 5: Solve for x
    x = 1,997,913,039.90/51,023.12
  6. Step 6: Final answer
    x = 39,157.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.