Home / 28,050.90-38,710.34-15,304.20

Finding the Fourth Proportional to 28,050.90, 38,710.34 and 15,304.20

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Solution

The fourth proportional to 28,050.90, 38,710.34 and 15,304.20 is: 21,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.90 : 38,710.34 = 15,304.20 : x
  2. Step 2: Convert to fraction form
    28,050.90/38,710.34 = 15,304.20/x
  3. Step 3: Cross multiply
    28,050.90x = 38,710.34 × 15,304.20
  4. Step 4: Simplify right side
    28,050.90x = 592,430,785.43
  5. Step 5: Solve for x
    x = 592,430,785.43/28,050.90
  6. Step 6: Final answer
    x = 21,119.85

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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.