Home / 38,502.32-53,132.63-21,506.80

Finding the Fourth Proportional to 38,502.32, 53,132.63 and 21,506.80

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Solution

The fourth proportional to 38,502.32, 53,132.63 and 21,506.80 is: 29,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.32 : 53,132.63 = 21,506.80 : x
  2. Step 2: Convert to fraction form
    38,502.32/53,132.63 = 21,506.80/x
  3. Step 3: Cross multiply
    38,502.32x = 53,132.63 × 21,506.80
  4. Step 4: Simplify right side
    38,502.32x = 1,142,712,846.88
  5. Step 5: Solve for x
    x = 1,142,712,846.88/38,502.32
  6. Step 6: Final answer
    x = 29,679.06

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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.