Home / 28,180.02-38,888.46-15,604.50

Finding the Fourth Proportional to 28,180.02, 38,888.46 and 15,604.50

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Solution

The fourth proportional to 28,180.02, 38,888.46 and 15,604.50 is: 21,534.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.02 : 38,888.46 = 15,604.50 : x
  2. Step 2: Convert to fraction form
    28,180.02/38,888.46 = 15,604.50/x
  3. Step 3: Cross multiply
    28,180.02x = 38,888.46 × 15,604.50
  4. Step 4: Simplify right side
    28,180.02x = 606,834,974.07
  5. Step 5: Solve for x
    x = 606,834,974.07/28,180.02
  6. Step 6: Final answer
    x = 21,534.23

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Double scale
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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.