Home / 28,648.64-39,534.51-15,901.08

Finding the Fourth Proportional to 28,648.64, 39,534.51 and 15,901.08

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Solution

The fourth proportional to 28,648.64, 39,534.51 and 15,901.08 is: 21,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.64 : 39,534.51 = 15,901.08 : x
  2. Step 2: Convert to fraction form
    28,648.64/39,534.51 = 15,901.08/x
  3. Step 3: Cross multiply
    28,648.64x = 39,534.51 × 15,901.08
  4. Step 4: Simplify right side
    28,648.64x = 628,641,406.27
  5. Step 5: Solve for x
    x = 628,641,406.27/28,648.64
  6. Step 6: Final answer
    x = 21,943.15

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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.