Home / 38,397.90-52,993.40-21,403.70

Finding the Fourth Proportional to 38,397.90, 52,993.40 and 21,403.70

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Solution

The fourth proportional to 38,397.90, 52,993.40 and 21,403.70 is: 29,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,397.90 : 52,993.40 = 21,403.70 : x
  2. Step 2: Convert to fraction form
    38,397.90/52,993.40 = 21,403.70/x
  3. Step 3: Cross multiply
    38,397.90x = 52,993.40 × 21,403.70
  4. Step 4: Simplify right side
    38,397.90x = 1,134,254,463.59
  5. Step 5: Solve for x
    x = 1,134,254,463.59/38,397.90
  6. Step 6: Final answer
    x = 29,539.49

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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.