Home / 39,742.60-59,599.14-11,655.40

Finding the Fourth Proportional to 39,742.60, 59,599.14 and 11,655.40

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Solution

The fourth proportional to 39,742.60, 59,599.14 and 11,655.40 is: 17,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742.60 : 59,599.14 = 11,655.40 : x
  2. Step 2: Convert to fraction form
    39,742.60/59,599.14 = 11,655.40/x
  3. Step 3: Cross multiply
    39,742.60x = 59,599.14 × 11,655.40
  4. Step 4: Simplify right side
    39,742.60x = 694,651,816.36
  5. Step 5: Solve for x
    x = 694,651,816.36/39,742.60
  6. Step 6: Final answer
    x = 17,478.77

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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.