Home / 42,774.60-64,165.52-15,764.32

Finding the Fourth Proportional to 42,774.60, 64,165.52 and 15,764.32

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Solution

The fourth proportional to 42,774.60, 64,165.52 and 15,764.32 is: 23,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,774.60 : 64,165.52 = 15,764.32 : x
  2. Step 2: Convert to fraction form
    42,774.60/64,165.52 = 15,764.32/x
  3. Step 3: Cross multiply
    42,774.60x = 64,165.52 × 15,764.32
  4. Step 4: Simplify right side
    42,774.60x = 1,011,525,790.25
  5. Step 5: Solve for x
    x = 1,011,525,790.25/42,774.60
  6. Step 6: Final answer
    x = 23,647.81

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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.