Home / 28,320.60-42,483.06-13,536.12

Finding the Fourth Proportional to 28,320.60, 42,483.06 and 13,536.12

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Solution

The fourth proportional to 28,320.60, 42,483.06 and 13,536.12 is: 20,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.60 : 42,483.06 = 13,536.12 : x
  2. Step 2: Convert to fraction form
    28,320.60/42,483.06 = 13,536.12/x
  3. Step 3: Cross multiply
    28,320.60x = 42,483.06 × 13,536.12
  4. Step 4: Simplify right side
    28,320.60x = 575,055,798.13
  5. Step 5: Solve for x
    x = 575,055,798.13/28,320.60
  6. Step 6: Final answer
    x = 20,305.21

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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.