Home / 31,459.76-43,416.35-18,031.89

Finding the Fourth Proportional to 31,459.76, 43,416.35 and 18,031.89

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Solution

The fourth proportional to 31,459.76, 43,416.35 and 18,031.89 is: 24,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.76 : 43,416.35 = 18,031.89 : x
  2. Step 2: Convert to fraction form
    31,459.76/43,416.35 = 18,031.89/x
  3. Step 3: Cross multiply
    31,459.76x = 43,416.35 × 18,031.89
  4. Step 4: Simplify right side
    31,459.76x = 782,878,648.70
  5. Step 5: Solve for x
    x = 782,878,648.70/31,459.76
  6. Step 6: Final answer
    x = 24,885.08

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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.