Home / 38,155.18-52,653.16-21,159.15

Finding the Fourth Proportional to 38,155.18, 52,653.16 and 21,159.15

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Solution

The fourth proportional to 38,155.18, 52,653.16 and 21,159.15 is: 29,199.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.18 : 52,653.16 = 21,159.15 : x
  2. Step 2: Convert to fraction form
    38,155.18/52,653.16 = 21,159.15/x
  3. Step 3: Cross multiply
    38,155.18x = 52,653.16 × 21,159.15
  4. Step 4: Simplify right side
    38,155.18x = 1,114,096,110.41
  5. Step 5: Solve for x
    x = 1,114,096,110.41/38,155.18
  6. Step 6: Final answer
    x = 29,199.08

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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.