Home / 14,303.20-21,411.60-12,575.20

Finding the Fourth Proportional to 14,303.20, 21,411.60 and 12,575.20

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Solution

The fourth proportional to 14,303.20, 21,411.60 and 12,575.20 is: 18,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.20 : 21,411.60 = 12,575.20 : x
  2. Step 2: Convert to fraction form
    14,303.20/21,411.60 = 12,575.20/x
  3. Step 3: Cross multiply
    14,303.20x = 21,411.60 × 12,575.20
  4. Step 4: Simplify right side
    14,303.20x = 269,255,152.32
  5. Step 5: Solve for x
    x = 269,255,152.32/14,303.20
  6. Step 6: Final answer
    x = 18,824.82

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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.