Home / 27,568.16-38,045.76-15,631.28

Finding the Fourth Proportional to 27,568.16, 38,045.76 and 15,631.28

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Solution

The fourth proportional to 27,568.16, 38,045.76 and 15,631.28 is: 21,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,568.16 : 38,045.76 = 15,631.28 : x
  2. Step 2: Convert to fraction form
    27,568.16/38,045.76 = 15,631.28/x
  3. Step 3: Cross multiply
    27,568.16x = 38,045.76 × 15,631.28
  4. Step 4: Simplify right side
    27,568.16x = 594,703,927.37
  5. Step 5: Solve for x
    x = 594,703,927.37/27,568.16
  6. Step 6: Final answer
    x = 21,572.13

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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.