Home / 28,332.95-39,100.32-15,585.48

Finding the Fourth Proportional to 28,332.95, 39,100.32 and 15,585.48

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Solution

The fourth proportional to 28,332.95, 39,100.32 and 15,585.48 is: 21,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.95 : 39,100.32 = 15,585.48 : x
  2. Step 2: Convert to fraction form
    28,332.95/39,100.32 = 15,585.48/x
  3. Step 3: Cross multiply
    28,332.95x = 39,100.32 × 15,585.48
  4. Step 4: Simplify right side
    28,332.95x = 609,397,255.35
  5. Step 5: Solve for x
    x = 609,397,255.35/28,332.95
  6. Step 6: Final answer
    x = 21,508.43

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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.