Home / 19,938.56-29,672.48-19,274.15

Finding the Fourth Proportional to 19,938.56, 29,672.48 and 19,274.15

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Solution

The fourth proportional to 19,938.56, 29,672.48 and 19,274.15 is: 28,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.56 : 29,672.48 = 19,274.15 : x
  2. Step 2: Convert to fraction form
    19,938.56/29,672.48 = 19,274.15/x
  3. Step 3: Cross multiply
    19,938.56x = 29,672.48 × 19,274.15
  4. Step 4: Simplify right side
    19,938.56x = 571,911,844.34
  5. Step 5: Solve for x
    x = 571,911,844.34/19,938.56
  6. Step 6: Final answer
    x = 28,683.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.