Home / 26,329.60-36,335.28-15,720.16

Finding the Fourth Proportional to 26,329.60, 36,335.28 and 15,720.16

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Solution

The fourth proportional to 26,329.60, 36,335.28 and 15,720.16 is: 21,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,329.60 : 36,335.28 = 15,720.16 : x
  2. Step 2: Convert to fraction form
    26,329.60/36,335.28 = 15,720.16/x
  3. Step 3: Cross multiply
    26,329.60x = 36,335.28 × 15,720.16
  4. Step 4: Simplify right side
    26,329.60x = 571,196,415.24
  5. Step 5: Solve for x
    x = 571,196,415.24/26,329.60
  6. Step 6: Final answer
    x = 21,694.08

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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.