Home / 21,248.56-31,887.36-7,397.56

Finding the Fourth Proportional to 21,248.56, 31,887.36 and 7,397.56

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Solution

The fourth proportional to 21,248.56, 31,887.36 and 7,397.56 is: 11,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.56 : 31,887.36 = 7,397.56 : x
  2. Step 2: Convert to fraction form
    21,248.56/31,887.36 = 7,397.56/x
  3. Step 3: Cross multiply
    21,248.56x = 31,887.36 × 7,397.56
  4. Step 4: Simplify right side
    21,248.56x = 235,888,658.84
  5. Step 5: Solve for x
    x = 235,888,658.84/21,248.56
  6. Step 6: Final answer
    x = 11,101.40

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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.