Home / 28,144-38,835.36-15,567.04

Finding the Fourth Proportional to 28,144, 38,835.36 and 15,567.04

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Solution

The fourth proportional to 28,144, 38,835.36 and 15,567.04 is: 21,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144 : 38,835.36 = 15,567.04 : x
  2. Step 2: Convert to fraction form
    28,144/38,835.36 = 15,567.04/x
  3. Step 3: Cross multiply
    28,144x = 38,835.36 × 15,567.04
  4. Step 4: Simplify right side
    28,144x = 604,551,602.53
  5. Step 5: Solve for x
    x = 604,551,602.53/28,144
  6. Step 6: Final answer
    x = 21,480.66

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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.