Home / 20,457.48-30,673.80-13,347

Finding the Fourth Proportional to 20,457.48, 30,673.80 and 13,347

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Solution

The fourth proportional to 20,457.48, 30,673.80 and 13,347 is: 20,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.48 : 30,673.80 = 13,347 : x
  2. Step 2: Convert to fraction form
    20,457.48/30,673.80 = 13,347/x
  3. Step 3: Cross multiply
    20,457.48x = 30,673.80 × 13,347
  4. Step 4: Simplify right side
    20,457.48x = 409,403,208.60
  5. Step 5: Solve for x
    x = 409,403,208.60/20,457.48
  6. Step 6: Final answer
    x = 20,012.40

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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.