Home / 35,771.40-53,657.10-12,400.20

Finding the Fourth Proportional to 35,771.40, 53,657.10 and 12,400.20

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Solution

The fourth proportional to 35,771.40, 53,657.10 and 12,400.20 is: 18,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,771.40 : 53,657.10 = 12,400.20 : x
  2. Step 2: Convert to fraction form
    35,771.40/53,657.10 = 12,400.20/x
  3. Step 3: Cross multiply
    35,771.40x = 53,657.10 × 12,400.20
  4. Step 4: Simplify right side
    35,771.40x = 665,358,771.42
  5. Step 5: Solve for x
    x = 665,358,771.42/35,771.40
  6. Step 6: Final answer
    x = 18,600.30

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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.