Home / 42,322.94-63,476.38-21,257.34

Finding the Fourth Proportional to 42,322.94, 63,476.38 and 21,257.34

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Solution

The fourth proportional to 42,322.94, 63,476.38 and 21,257.34 is: 31,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,322.94 : 63,476.38 = 21,257.34 : x
  2. Step 2: Convert to fraction form
    42,322.94/63,476.38 = 21,257.34/x
  3. Step 3: Cross multiply
    42,322.94x = 63,476.38 × 21,257.34
  4. Step 4: Simplify right side
    42,322.94x = 1,349,338,991.63
  5. Step 5: Solve for x
    x = 1,349,338,991.63/42,322.94
  6. Step 6: Final answer
    x = 31,881.98

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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.