Home / 27,838.78-38,417.67-15,263.74

Finding the Fourth Proportional to 27,838.78, 38,417.67 and 15,263.74

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Solution

The fourth proportional to 27,838.78, 38,417.67 and 15,263.74 is: 21,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.78 : 38,417.67 = 15,263.74 : x
  2. Step 2: Convert to fraction form
    27,838.78/38,417.67 = 15,263.74/x
  3. Step 3: Cross multiply
    27,838.78x = 38,417.67 × 15,263.74
  4. Step 4: Simplify right side
    27,838.78x = 586,397,326.29
  5. Step 5: Solve for x
    x = 586,397,326.29/27,838.78
  6. Step 6: Final answer
    x = 21,064.05

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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.