Home / 28,345.32-39,116.72-15,598.15

Finding the Fourth Proportional to 28,345.32, 39,116.72 and 15,598.15

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Solution

The fourth proportional to 28,345.32, 39,116.72 and 15,598.15 is: 21,525.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.32 : 39,116.72 = 15,598.15 : x
  2. Step 2: Convert to fraction form
    28,345.32/39,116.72 = 15,598.15/x
  3. Step 3: Cross multiply
    28,345.32x = 39,116.72 × 15,598.15
  4. Step 4: Simplify right side
    28,345.32x = 610,148,466.07
  5. Step 5: Solve for x
    x = 610,148,466.07/28,345.32
  6. Step 6: Final answer
    x = 21,525.55

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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.