Home / 28,360.72-42,476.22-13,580.08

Finding the Fourth Proportional to 28,360.72, 42,476.22 and 13,580.08

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Solution

The fourth proportional to 28,360.72, 42,476.22 and 13,580.08 is: 20,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.72 : 42,476.22 = 13,580.08 : x
  2. Step 2: Convert to fraction form
    28,360.72/42,476.22 = 13,580.08/x
  3. Step 3: Cross multiply
    28,360.72x = 42,476.22 × 13,580.08
  4. Step 4: Simplify right side
    28,360.72x = 576,830,465.70
  5. Step 5: Solve for x
    x = 576,830,465.70/28,360.72
  6. Step 6: Final answer
    x = 20,339.06

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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.