Home / 18,421.24-25,421.32-10,037.76

Finding the Fourth Proportional to 18,421.24, 25,421.32 and 10,037.76

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Solution

The fourth proportional to 18,421.24, 25,421.32 and 10,037.76 is: 13,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.24 : 25,421.32 = 10,037.76 : x
  2. Step 2: Convert to fraction form
    18,421.24/25,421.32 = 10,037.76/x
  3. Step 3: Cross multiply
    18,421.24x = 25,421.32 × 10,037.76
  4. Step 4: Simplify right side
    18,421.24x = 255,173,109.04
  5. Step 5: Solve for x
    x = 255,173,109.04/18,421.24
  6. Step 6: Final answer
    x = 13,852.11

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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.