Home / 28,370.60-39,152.49-15,624.34

Finding the Fourth Proportional to 28,370.60, 39,152.49 and 15,624.34

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Solution

The fourth proportional to 28,370.60, 39,152.49 and 15,624.34 is: 21,562.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.60 : 39,152.49 = 15,624.34 : x
  2. Step 2: Convert to fraction form
    28,370.60/39,152.49 = 15,624.34/x
  3. Step 3: Cross multiply
    28,370.60x = 39,152.49 × 15,624.34
  4. Step 4: Simplify right side
    28,370.60x = 611,731,815.61
  5. Step 5: Solve for x
    x = 611,731,815.61/28,370.60
  6. Step 6: Final answer
    x = 21,562.17

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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.