Home / 30,887.84-42,637.92-19,573.76

Finding the Fourth Proportional to 30,887.84, 42,637.92 and 19,573.76

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Solution

The fourth proportional to 30,887.84, 42,637.92 and 19,573.76 is: 27,019.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.84 : 42,637.92 = 19,573.76 : x
  2. Step 2: Convert to fraction form
    30,887.84/42,637.92 = 19,573.76/x
  3. Step 3: Cross multiply
    30,887.84x = 42,637.92 × 19,573.76
  4. Step 4: Simplify right side
    30,887.84x = 834,584,412.98
  5. Step 5: Solve for x
    x = 834,584,412.98/30,887.84
  6. Step 6: Final answer
    x = 27,019.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.