Home / 27,698.94-38,224.51-15,123.69

Finding the Fourth Proportional to 27,698.94, 38,224.51 and 15,123.69

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Solution

The fourth proportional to 27,698.94, 38,224.51 and 15,123.69 is: 20,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,698.94 : 38,224.51 = 15,123.69 : x
  2. Step 2: Convert to fraction form
    27,698.94/38,224.51 = 15,123.69/x
  3. Step 3: Cross multiply
    27,698.94x = 38,224.51 × 15,123.69
  4. Step 4: Simplify right side
    27,698.94x = 578,095,639.64
  5. Step 5: Solve for x
    x = 578,095,639.64/27,698.94
  6. Step 6: Final answer
    x = 20,870.68

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Half scale
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Double scale
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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.