Home / 19,445.40-26,829.90-10,945.80

Finding the Fourth Proportional to 19,445.40, 26,829.90 and 10,945.80

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Solution

The fourth proportional to 19,445.40, 26,829.90 and 10,945.80 is: 15,102.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.40 : 26,829.90 = 10,945.80 : x
  2. Step 2: Convert to fraction form
    19,445.40/26,829.90 = 10,945.80/x
  3. Step 3: Cross multiply
    19,445.40x = 26,829.90 × 10,945.80
  4. Step 4: Simplify right side
    19,445.40x = 293,674,719.42
  5. Step 5: Solve for x
    x = 293,674,719.42/19,445.40
  6. Step 6: Final answer
    x = 15,102.53

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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.