Home / 38,461.60-57,643.80-28,061.20

Finding the Fourth Proportional to 38,461.60, 57,643.80 and 28,061.20

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Solution

The fourth proportional to 38,461.60, 57,643.80 and 28,061.20 is: 42,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,461.60 : 57,643.80 = 28,061.20 : x
  2. Step 2: Convert to fraction form
    38,461.60/57,643.80 = 28,061.20/x
  3. Step 3: Cross multiply
    38,461.60x = 57,643.80 × 28,061.20
  4. Step 4: Simplify right side
    38,461.60x = 1,617,554,200.56
  5. Step 5: Solve for x
    x = 1,617,554,200.56/38,461.60
  6. Step 6: Final answer
    x = 42,056.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.