Home / 42,365.57-63,553.66-12,783.36

Finding the Fourth Proportional to 42,365.57, 63,553.66 and 12,783.36

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Solution

The fourth proportional to 42,365.57, 63,553.66 and 12,783.36 is: 19,176.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,365.57 : 63,553.66 = 12,783.36 : x
  2. Step 2: Convert to fraction form
    42,365.57/63,553.66 = 12,783.36/x
  3. Step 3: Cross multiply
    42,365.57x = 63,553.66 × 12,783.36
  4. Step 4: Simplify right side
    42,365.57x = 812,429,283.14
  5. Step 5: Solve for x
    x = 812,429,283.14/42,365.57
  6. Step 6: Final answer
    x = 19,176.64

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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.