Home / 31,149.68-42,985.05-17,719.67

Finding the Fourth Proportional to 31,149.68, 42,985.05 and 17,719.67

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Solution

The fourth proportional to 31,149.68, 42,985.05 and 17,719.67 is: 24,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,149.68 : 42,985.05 = 17,719.67 : x
  2. Step 2: Convert to fraction form
    31,149.68/42,985.05 = 17,719.67/x
  3. Step 3: Cross multiply
    31,149.68x = 42,985.05 × 17,719.67
  4. Step 4: Simplify right side
    31,149.68x = 761,681,008.40
  5. Step 5: Solve for x
    x = 761,681,008.40/31,149.68
  6. Step 6: Final answer
    x = 24,452.29

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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.