Home / 27,970.54-38,595.80-18,915.66

Finding the Fourth Proportional to 27,970.54, 38,595.80 and 18,915.66

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Solution

The fourth proportional to 27,970.54, 38,595.80 and 18,915.66 is: 26,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.54 : 38,595.80 = 18,915.66 : x
  2. Step 2: Convert to fraction form
    27,970.54/38,595.80 = 18,915.66/x
  3. Step 3: Cross multiply
    27,970.54x = 38,595.80 × 18,915.66
  4. Step 4: Simplify right side
    27,970.54x = 730,065,077.52
  5. Step 5: Solve for x
    x = 730,065,077.52/27,970.54
  6. Step 6: Final answer
    x = 26,101.22

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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.