Home / 27,870.72-38,462.40-16,696.32

Finding the Fourth Proportional to 27,870.72, 38,462.40 and 16,696.32

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Solution

The fourth proportional to 27,870.72, 38,462.40 and 16,696.32 is: 23,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,870.72 : 38,462.40 = 16,696.32 : x
  2. Step 2: Convert to fraction form
    27,870.72/38,462.40 = 16,696.32/x
  3. Step 3: Cross multiply
    27,870.72x = 38,462.40 × 16,696.32
  4. Step 4: Simplify right side
    27,870.72x = 642,180,538.37
  5. Step 5: Solve for x
    x = 642,180,538.37/27,870.72
  6. Step 6: Final answer
    x = 23,041.40

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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.