Home / 34,539.69-47,663.75-20,935.79

Finding the Fourth Proportional to 34,539.69, 47,663.75 and 20,935.79

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Solution

The fourth proportional to 34,539.69, 47,663.75 and 20,935.79 is: 28,890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,539.69 : 47,663.75 = 20,935.79 : x
  2. Step 2: Convert to fraction form
    34,539.69/47,663.75 = 20,935.79/x
  3. Step 3: Cross multiply
    34,539.69x = 47,663.75 × 20,935.79
  4. Step 4: Simplify right side
    34,539.69x = 997,877,917.61
  5. Step 5: Solve for x
    x = 997,877,917.61/34,539.69
  6. Step 6: Final answer
    x = 28,890.76

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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.