Home / 27,710.40-38,240.30-15,135.14

Finding the Fourth Proportional to 27,710.40, 38,240.30 and 15,135.14

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Solution

The fourth proportional to 27,710.40, 38,240.30 and 15,135.14 is: 20,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,710.40 : 38,240.30 = 15,135.14 : x
  2. Step 2: Convert to fraction form
    27,710.40/38,240.30 = 15,135.14/x
  3. Step 3: Cross multiply
    27,710.40x = 38,240.30 × 15,135.14
  4. Step 4: Simplify right side
    27,710.40x = 578,772,294.14
  5. Step 5: Solve for x
    x = 578,772,294.14/27,710.40
  6. Step 6: Final answer
    x = 20,886.46

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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.