Home / 27,848.49-38,432.95-15,911.57

Finding the Fourth Proportional to 27,848.49, 38,432.95 and 15,911.57

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Solution

The fourth proportional to 27,848.49, 38,432.95 and 15,911.57 is: 21,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,848.49 : 38,432.95 = 15,911.57 : x
  2. Step 2: Convert to fraction form
    27,848.49/38,432.95 = 15,911.57/x
  3. Step 3: Cross multiply
    27,848.49x = 38,432.95 × 15,911.57
  4. Step 4: Simplify right side
    27,848.49x = 611,528,494.67
  5. Step 5: Solve for x
    x = 611,528,494.67/27,848.49
  6. Step 6: Final answer
    x = 21,959.13

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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.