Home / 28,108.56-38,788.29-15,532.50

Finding the Fourth Proportional to 28,108.56, 38,788.29 and 15,532.50

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Solution

The fourth proportional to 28,108.56, 38,788.29 and 15,532.50 is: 21,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.56 : 38,788.29 = 15,532.50 : x
  2. Step 2: Convert to fraction form
    28,108.56/38,788.29 = 15,532.50/x
  3. Step 3: Cross multiply
    28,108.56x = 38,788.29 × 15,532.50
  4. Step 4: Simplify right side
    28,108.56x = 602,479,114.43
  5. Step 5: Solve for x
    x = 602,479,114.43/28,108.56
  6. Step 6: Final answer
    x = 21,434.01

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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.