Home / 28,360.32-42,515.87-14,308.51

Finding the Fourth Proportional to 28,360.32, 42,515.87 and 14,308.51

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Solution

The fourth proportional to 28,360.32, 42,515.87 and 14,308.51 is: 21,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.32 : 42,515.87 = 14,308.51 : x
  2. Step 2: Convert to fraction form
    28,360.32/42,515.87 = 14,308.51/x
  3. Step 3: Cross multiply
    28,360.32x = 42,515.87 × 14,308.51
  4. Step 4: Simplify right side
    28,360.32x = 608,338,573.22
  5. Step 5: Solve for x
    x = 608,338,573.22/28,360.32
  6. Step 6: Final answer
    x = 21,450.34

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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.