Home / 28,205.32-42,308.43-13,411.25

Finding the Fourth Proportional to 28,205.32, 42,308.43 and 13,411.25

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Solution

The fourth proportional to 28,205.32, 42,308.43 and 13,411.25 is: 20,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.32 : 42,308.43 = 13,411.25 : x
  2. Step 2: Convert to fraction form
    28,205.32/42,308.43 = 13,411.25/x
  3. Step 3: Cross multiply
    28,205.32x = 42,308.43 × 13,411.25
  4. Step 4: Simplify right side
    28,205.32x = 567,408,931.84
  5. Step 5: Solve for x
    x = 567,408,931.84/28,205.32
  6. Step 6: Final answer
    x = 20,117.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.