Home / 28,027.71-38,671.38-15,925.50

Finding the Fourth Proportional to 28,027.71, 38,671.38 and 15,925.50

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Solution

The fourth proportional to 28,027.71, 38,671.38 and 15,925.50 is: 21,973.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.71 : 38,671.38 = 15,925.50 : x
  2. Step 2: Convert to fraction form
    28,027.71/38,671.38 = 15,925.50/x
  3. Step 3: Cross multiply
    28,027.71x = 38,671.38 × 15,925.50
  4. Step 4: Simplify right side
    28,027.71x = 615,861,062.19
  5. Step 5: Solve for x
    x = 615,861,062.19/28,027.71
  6. Step 6: Final answer
    x = 21,973.29

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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.