Home / 15,743.68-23,500.34-13,875.39

Finding the Fourth Proportional to 15,743.68, 23,500.34 and 13,875.39

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Solution

The fourth proportional to 15,743.68, 23,500.34 and 13,875.39 is: 20,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.68 : 23,500.34 = 13,875.39 : x
  2. Step 2: Convert to fraction form
    15,743.68/23,500.34 = 13,875.39/x
  3. Step 3: Cross multiply
    15,743.68x = 23,500.34 × 13,875.39
  4. Step 4: Simplify right side
    15,743.68x = 326,076,365.29
  5. Step 5: Solve for x
    x = 326,076,365.29/15,743.68
  6. Step 6: Final answer
    x = 20,711.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.