Home / 39,770.84-59,643.59-13,111.86

Finding the Fourth Proportional to 39,770.84, 59,643.59 and 13,111.86

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Solution

The fourth proportional to 39,770.84, 59,643.59 and 13,111.86 is: 19,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,770.84 : 59,643.59 = 13,111.86 : x
  2. Step 2: Convert to fraction form
    39,770.84/59,643.59 = 13,111.86/x
  3. Step 3: Cross multiply
    39,770.84x = 59,643.59 × 13,111.86
  4. Step 4: Simplify right side
    39,770.84x = 782,038,560.08
  5. Step 5: Solve for x
    x = 782,038,560.08/39,770.84
  6. Step 6: Final answer
    x = 19,663.62

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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.