Home / 20,417.06-30,598.86-13,885.22

Finding the Fourth Proportional to 20,417.06, 30,598.86 and 13,885.22

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Solution

The fourth proportional to 20,417.06, 30,598.86 and 13,885.22 is: 20,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.06 : 30,598.86 = 13,885.22 : x
  2. Step 2: Convert to fraction form
    20,417.06/30,598.86 = 13,885.22/x
  3. Step 3: Cross multiply
    20,417.06x = 30,598.86 × 13,885.22
  4. Step 4: Simplify right side
    20,417.06x = 424,872,031.42
  5. Step 5: Solve for x
    x = 424,872,031.42/20,417.06
  6. Step 6: Final answer
    x = 20,809.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.