Home / 15,824.40-21,840.28-12,041.52

Finding the Fourth Proportional to 15,824.40, 21,840.28 and 12,041.52

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Solution

The fourth proportional to 15,824.40, 21,840.28 and 12,041.52 is: 16,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.40 : 21,840.28 = 12,041.52 : x
  2. Step 2: Convert to fraction form
    15,824.40/21,840.28 = 12,041.52/x
  3. Step 3: Cross multiply
    15,824.40x = 21,840.28 × 12,041.52
  4. Step 4: Simplify right side
    15,824.40x = 262,990,168.43
  5. Step 5: Solve for x
    x = 262,990,168.43/15,824.40
  6. Step 6: Final answer
    x = 16,619.28

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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.