Home / 30,887.52-42,623.28-19,569.12

Finding the Fourth Proportional to 30,887.52, 42,623.28 and 19,569.12

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Solution

The fourth proportional to 30,887.52, 42,623.28 and 19,569.12 is: 27,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.52 : 42,623.28 = 19,569.12 : x
  2. Step 2: Convert to fraction form
    30,887.52/42,623.28 = 19,569.12/x
  3. Step 3: Cross multiply
    30,887.52x = 42,623.28 × 19,569.12
  4. Step 4: Simplify right side
    30,887.52x = 834,100,081.11
  5. Step 5: Solve for x
    x = 834,100,081.11/30,887.52
  6. Step 6: Final answer
    x = 27,004.44

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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.