Home / 15,031.84-20,741.52-9,438.88

Finding the Fourth Proportional to 15,031.84, 20,741.52 and 9,438.88

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Solution

The fourth proportional to 15,031.84, 20,741.52 and 9,438.88 is: 13,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.84 : 20,741.52 = 9,438.88 : x
  2. Step 2: Convert to fraction form
    15,031.84/20,741.52 = 9,438.88/x
  3. Step 3: Cross multiply
    15,031.84x = 20,741.52 × 9,438.88
  4. Step 4: Simplify right side
    15,031.84x = 195,776,718.30
  5. Step 5: Solve for x
    x = 195,776,718.30/15,031.84
  6. Step 6: Final answer
    x = 13,024.14

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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.