Home / 28,263.52-39,003.63-15,688.24

Finding the Fourth Proportional to 28,263.52, 39,003.63 and 15,688.24

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Solution

The fourth proportional to 28,263.52, 39,003.63 and 15,688.24 is: 21,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.52 : 39,003.63 = 15,688.24 : x
  2. Step 2: Convert to fraction form
    28,263.52/39,003.63 = 15,688.24/x
  3. Step 3: Cross multiply
    28,263.52x = 39,003.63 × 15,688.24
  4. Step 4: Simplify right side
    28,263.52x = 611,898,308.31
  5. Step 5: Solve for x
    x = 611,898,308.31/28,263.52
  6. Step 6: Final answer
    x = 21,649.76

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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.