Home / 42,923.28-64,394.64-15,221.28

Finding the Fourth Proportional to 42,923.28, 64,394.64 and 15,221.28

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Solution

The fourth proportional to 42,923.28, 64,394.64 and 15,221.28 is: 22,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,923.28 : 64,394.64 = 15,221.28 : x
  2. Step 2: Convert to fraction form
    42,923.28/64,394.64 = 15,221.28/x
  3. Step 3: Cross multiply
    42,923.28x = 64,394.64 × 15,221.28
  4. Step 4: Simplify right side
    42,923.28x = 980,168,845.94
  5. Step 5: Solve for x
    x = 980,168,845.94/42,923.28
  6. Step 6: Final answer
    x = 22,835.37

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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.