Home / 28,264.56-39,003.54-15,688.56

Finding the Fourth Proportional to 28,264.56, 39,003.54 and 15,688.56

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Solution

The fourth proportional to 28,264.56, 39,003.54 and 15,688.56 is: 21,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.56 : 39,003.54 = 15,688.56 : x
  2. Step 2: Convert to fraction form
    28,264.56/39,003.54 = 15,688.56/x
  3. Step 3: Cross multiply
    28,264.56x = 39,003.54 × 15,688.56
  4. Step 4: Simplify right side
    28,264.56x = 611,909,377.50
  5. Step 5: Solve for x
    x = 611,909,377.50/28,264.56
  6. Step 6: Final answer
    x = 21,649.35

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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.