Home / 28,142.46-38,836.08-15,567.24

Finding the Fourth Proportional to 28,142.46, 38,836.08 and 15,567.24

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Solution

The fourth proportional to 28,142.46, 38,836.08 and 15,567.24 is: 21,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.46 : 38,836.08 = 15,567.24 : x
  2. Step 2: Convert to fraction form
    28,142.46/38,836.08 = 15,567.24/x
  3. Step 3: Cross multiply
    28,142.46x = 38,836.08 × 15,567.24
  4. Step 4: Simplify right side
    28,142.46x = 604,570,578.02
  5. Step 5: Solve for x
    x = 604,570,578.02/28,142.46
  6. Step 6: Final answer
    x = 21,482.51

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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.