Home / 21,486.74-29,655.32-12,535.25

Finding the Fourth Proportional to 21,486.74, 29,655.32 and 12,535.25

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Solution

The fourth proportional to 21,486.74, 29,655.32 and 12,535.25 is: 17,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.74 : 29,655.32 = 12,535.25 : x
  2. Step 2: Convert to fraction form
    21,486.74/29,655.32 = 12,535.25/x
  3. Step 3: Cross multiply
    21,486.74x = 29,655.32 × 12,535.25
  4. Step 4: Simplify right side
    21,486.74x = 371,736,639.08
  5. Step 5: Solve for x
    x = 371,736,639.08/21,486.74
  6. Step 6: Final answer
    x = 17,300.75

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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.