Home / 28,330.66-42,495.84-13,535.91

Finding the Fourth Proportional to 28,330.66, 42,495.84 and 13,535.91

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Solution

The fourth proportional to 28,330.66, 42,495.84 and 13,535.91 is: 20,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.66 : 42,495.84 = 13,535.91 : x
  2. Step 2: Convert to fraction form
    28,330.66/42,495.84 = 13,535.91/x
  3. Step 3: Cross multiply
    28,330.66x = 42,495.84 × 13,535.91
  4. Step 4: Simplify right side
    28,330.66x = 575,219,865.61
  5. Step 5: Solve for x
    x = 575,219,865.61/28,330.66
  6. Step 6: Final answer
    x = 20,303.79

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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.