Home / 39,663.40-59,455.67-19,881.58

Finding the Fourth Proportional to 39,663.40, 59,455.67 and 19,881.58

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Solution

The fourth proportional to 39,663.40, 59,455.67 and 19,881.58 is: 29,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,663.40 : 59,455.67 = 19,881.58 : x
  2. Step 2: Convert to fraction form
    39,663.40/59,455.67 = 19,881.58/x
  3. Step 3: Cross multiply
    39,663.40x = 59,455.67 × 19,881.58
  4. Step 4: Simplify right side
    39,663.40x = 1,182,072,659.56
  5. Step 5: Solve for x
    x = 1,182,072,659.56/39,663.40
  6. Step 6: Final answer
    x = 29,802.61

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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.