Home / 28,193.59-38,905.66-15,444.40

Finding the Fourth Proportional to 28,193.59, 38,905.66 and 15,444.40

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Solution

The fourth proportional to 28,193.59, 38,905.66 and 15,444.40 is: 21,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.59 : 38,905.66 = 15,444.40 : x
  2. Step 2: Convert to fraction form
    28,193.59/38,905.66 = 15,444.40/x
  3. Step 3: Cross multiply
    28,193.59x = 38,905.66 × 15,444.40
  4. Step 4: Simplify right side
    28,193.59x = 600,874,575.30
  5. Step 5: Solve for x
    x = 600,874,575.30/28,193.59
  6. Step 6: Final answer
    x = 21,312.45

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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.