Home / 35,643.20-53,437.80-18,125.60

Finding the Fourth Proportional to 35,643.20, 53,437.80 and 18,125.60

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Solution

The fourth proportional to 35,643.20, 53,437.80 and 18,125.60 is: 27,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,643.20 : 53,437.80 = 18,125.60 : x
  2. Step 2: Convert to fraction form
    35,643.20/53,437.80 = 18,125.60/x
  3. Step 3: Cross multiply
    35,643.20x = 53,437.80 × 18,125.60
  4. Step 4: Simplify right side
    35,643.20x = 968,592,187.68
  5. Step 5: Solve for x
    x = 968,592,187.68/35,643.20
  6. Step 6: Final answer
    x = 27,174.67

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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.