Home / 15,987.58-23,981.32-4,300.81

Finding the Fourth Proportional to 15,987.58, 23,981.32 and 4,300.81

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Solution

The fourth proportional to 15,987.58, 23,981.32 and 4,300.81 is: 6,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.58 : 23,981.32 = 4,300.81 : x
  2. Step 2: Convert to fraction form
    15,987.58/23,981.32 = 4,300.81/x
  3. Step 3: Cross multiply
    15,987.58x = 23,981.32 × 4,300.81
  4. Step 4: Simplify right side
    15,987.58x = 103,139,100.87
  5. Step 5: Solve for x
    x = 103,139,100.87/15,987.58
  6. Step 6: Final answer
    x = 6,451.20

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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.