Home / 27,587.92-38,068.70-15,485.63

Finding the Fourth Proportional to 27,587.92, 38,068.70 and 15,485.63

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Solution

The fourth proportional to 27,587.92, 38,068.70 and 15,485.63 is: 21,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,587.92 : 38,068.70 = 15,485.63 : x
  2. Step 2: Convert to fraction form
    27,587.92/38,068.70 = 15,485.63/x
  3. Step 3: Cross multiply
    27,587.92x = 38,068.70 × 15,485.63
  4. Step 4: Simplify right side
    27,587.92x = 589,517,690.62
  5. Step 5: Solve for x
    x = 589,517,690.62/27,587.92
  6. Step 6: Final answer
    x = 21,368.69

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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.