Home / 31,093.60-42,887.28-19,153.12

Finding the Fourth Proportional to 31,093.60, 42,887.28 and 19,153.12

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Solution

The fourth proportional to 31,093.60, 42,887.28 and 19,153.12 is: 26,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,093.60 : 42,887.28 = 19,153.12 : x
  2. Step 2: Convert to fraction form
    31,093.60/42,887.28 = 19,153.12/x
  3. Step 3: Cross multiply
    31,093.60x = 42,887.28 × 19,153.12
  4. Step 4: Simplify right side
    31,093.60x = 821,425,220.31
  5. Step 5: Solve for x
    x = 821,425,220.31/31,093.60
  6. Step 6: Final answer
    x = 26,417.82

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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.