Home / 28,345.91-39,117.28-15,599.35

Finding the Fourth Proportional to 28,345.91, 39,117.28 and 15,599.35

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Solution

The fourth proportional to 28,345.91, 39,117.28 and 15,599.35 is: 21,527.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.91 : 39,117.28 = 15,599.35 : x
  2. Step 2: Convert to fraction form
    28,345.91/39,117.28 = 15,599.35/x
  3. Step 3: Cross multiply
    28,345.91x = 39,117.28 × 15,599.35
  4. Step 4: Simplify right side
    28,345.91x = 610,203,868.18
  5. Step 5: Solve for x
    x = 610,203,868.18/28,345.91
  6. Step 6: Final answer
    x = 21,527.05

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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.