Home / 42,403.72-63,606.94-21,332.26

Finding the Fourth Proportional to 42,403.72, 63,606.94 and 21,332.26

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Solution

The fourth proportional to 42,403.72, 63,606.94 and 21,332.26 is: 31,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,403.72 : 63,606.94 = 21,332.26 : x
  2. Step 2: Convert to fraction form
    42,403.72/63,606.94 = 21,332.26/x
  3. Step 3: Cross multiply
    42,403.72x = 63,606.94 × 21,332.26
  4. Step 4: Simplify right side
    42,403.72x = 1,356,879,781.88
  5. Step 5: Solve for x
    x = 1,356,879,781.88/42,403.72
  6. Step 6: Final answer
    x = 31,999.07

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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.