Home / 28,598.81-39,465.34-15,853.18

Finding the Fourth Proportional to 28,598.81, 39,465.34 and 15,853.18

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Solution

The fourth proportional to 28,598.81, 39,465.34 and 15,853.18 is: 21,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,598.81 : 39,465.34 = 15,853.18 : x
  2. Step 2: Convert to fraction form
    28,598.81/39,465.34 = 15,853.18/x
  3. Step 3: Cross multiply
    28,598.81x = 39,465.34 × 15,853.18
  4. Step 4: Simplify right side
    28,598.81x = 625,651,138.78
  5. Step 5: Solve for x
    x = 625,651,138.78/28,598.81
  6. Step 6: Final answer
    x = 21,876.82

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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.