Home / 28,050.10-38,708.30-15,303.54

Finding the Fourth Proportional to 28,050.10, 38,708.30 and 15,303.54

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Solution

The fourth proportional to 28,050.10, 38,708.30 and 15,303.54 is: 21,118.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.10 : 38,708.30 = 15,303.54 : x
  2. Step 2: Convert to fraction form
    28,050.10/38,708.30 = 15,303.54/x
  3. Step 3: Cross multiply
    28,050.10x = 38,708.30 × 15,303.54
  4. Step 4: Simplify right side
    28,050.10x = 592,374,017.38
  5. Step 5: Solve for x
    x = 592,374,017.38/28,050.10
  6. Step 6: Final answer
    x = 21,118.43

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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.