Home / 43,308.76-64,966.50-13,728.28

Finding the Fourth Proportional to 43,308.76, 64,966.50 and 13,728.28

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Solution

The fourth proportional to 43,308.76, 64,966.50 and 13,728.28 is: 20,593.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.76 : 64,966.50 = 13,728.28 : x
  2. Step 2: Convert to fraction form
    43,308.76/64,966.50 = 13,728.28/x
  3. Step 3: Cross multiply
    43,308.76x = 64,966.50 × 13,728.28
  4. Step 4: Simplify right side
    43,308.76x = 891,878,302.62
  5. Step 5: Solve for x
    x = 891,878,302.62/43,308.76
  6. Step 6: Final answer
    x = 20,593.49

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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.