Home / 28,410.48-39,206.73-15,664.17

Finding the Fourth Proportional to 28,410.48, 39,206.73 and 15,664.17

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Solution

The fourth proportional to 28,410.48, 39,206.73 and 15,664.17 is: 21,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.48 : 39,206.73 = 15,664.17 : x
  2. Step 2: Convert to fraction form
    28,410.48/39,206.73 = 15,664.17/x
  3. Step 3: Cross multiply
    28,410.48x = 39,206.73 × 15,664.17
  4. Step 4: Simplify right side
    28,410.48x = 614,140,883.86
  5. Step 5: Solve for x
    x = 614,140,883.86/28,410.48
  6. Step 6: Final answer
    x = 21,616.70

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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.