Home / 31,539.48-47,320.06-14,021.56

Finding the Fourth Proportional to 31,539.48, 47,320.06 and 14,021.56

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Solution

The fourth proportional to 31,539.48, 47,320.06 and 14,021.56 is: 21,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.48 : 47,320.06 = 14,021.56 : x
  2. Step 2: Convert to fraction form
    31,539.48/47,320.06 = 14,021.56/x
  3. Step 3: Cross multiply
    31,539.48x = 47,320.06 × 14,021.56
  4. Step 4: Simplify right side
    31,539.48x = 663,501,060.49
  5. Step 5: Solve for x
    x = 663,501,060.49/31,539.48
  6. Step 6: Final answer
    x = 21,037.16

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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.