Home / 30,459.89-42,035.58-17,031.71

Finding the Fourth Proportional to 30,459.89, 42,035.58 and 17,031.71

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Solution

The fourth proportional to 30,459.89, 42,035.58 and 17,031.71 is: 23,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.89 : 42,035.58 = 17,031.71 : x
  2. Step 2: Convert to fraction form
    30,459.89/42,035.58 = 17,031.71/x
  3. Step 3: Cross multiply
    30,459.89x = 42,035.58 × 17,031.71
  4. Step 4: Simplify right side
    30,459.89x = 715,937,598.06
  5. Step 5: Solve for x
    x = 715,937,598.06/30,459.89
  6. Step 6: Final answer
    x = 23,504.28

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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.