Home / 15,811.60-23,695.80-10,531.60

Finding the Fourth Proportional to 15,811.60, 23,695.80 and 10,531.60

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Solution

The fourth proportional to 15,811.60, 23,695.80 and 10,531.60 is: 15,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.60 : 23,695.80 = 10,531.60 : x
  2. Step 2: Convert to fraction form
    15,811.60/23,695.80 = 10,531.60/x
  3. Step 3: Cross multiply
    15,811.60x = 23,695.80 × 10,531.60
  4. Step 4: Simplify right side
    15,811.60x = 249,554,687.28
  5. Step 5: Solve for x
    x = 249,554,687.28/15,811.60
  6. Step 6: Final answer
    x = 15,783.01

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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.