Home / 28,875.06-39,847.59-15,627.06

Finding the Fourth Proportional to 28,875.06, 39,847.59 and 15,627.06

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Solution

The fourth proportional to 28,875.06, 39,847.59 and 15,627.06 is: 21,565.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.06 : 39,847.59 = 15,627.06 : x
  2. Step 2: Convert to fraction form
    28,875.06/39,847.59 = 15,627.06/x
  3. Step 3: Cross multiply
    28,875.06x = 39,847.59 × 15,627.06
  4. Step 4: Simplify right side
    28,875.06x = 622,700,679.79
  5. Step 5: Solve for x
    x = 622,700,679.79/28,875.06
  6. Step 6: Final answer
    x = 21,565.35

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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.