Home / 38,426.15-53,027.97-21,430.41

Finding the Fourth Proportional to 38,426.15, 53,027.97 and 21,430.41

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Solution

The fourth proportional to 38,426.15, 53,027.97 and 21,430.41 is: 29,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.15 : 53,027.97 = 21,430.41 : x
  2. Step 2: Convert to fraction form
    38,426.15/53,027.97 = 21,430.41/x
  3. Step 3: Cross multiply
    38,426.15x = 53,027.97 × 21,430.41
  4. Step 4: Simplify right side
    38,426.15x = 1,136,411,138.57
  5. Step 5: Solve for x
    x = 1,136,411,138.57/38,426.15
  6. Step 6: Final answer
    x = 29,573.90

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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.