Home / 28,264.06-39,002.85-15,688.06

Finding the Fourth Proportional to 28,264.06, 39,002.85 and 15,688.06

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Solution

The fourth proportional to 28,264.06, 39,002.85 and 15,688.06 is: 21,648.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.06 : 39,002.85 = 15,688.06 : x
  2. Step 2: Convert to fraction form
    28,264.06/39,002.85 = 15,688.06/x
  3. Step 3: Cross multiply
    28,264.06x = 39,002.85 × 15,688.06
  4. Step 4: Simplify right side
    28,264.06x = 611,879,050.97
  5. Step 5: Solve for x
    x = 611,879,050.97/28,264.06
  6. Step 6: Final answer
    x = 21,648.66

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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.