Home / 30,239.68-45,343.90-13,585.48

Finding the Fourth Proportional to 30,239.68, 45,343.90 and 13,585.48

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Solution

The fourth proportional to 30,239.68, 45,343.90 and 13,585.48 is: 20,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.68 : 45,343.90 = 13,585.48 : x
  2. Step 2: Convert to fraction form
    30,239.68/45,343.90 = 13,585.48/x
  3. Step 3: Cross multiply
    30,239.68x = 45,343.90 × 13,585.48
  4. Step 4: Simplify right side
    30,239.68x = 616,018,646.57
  5. Step 5: Solve for x
    x = 616,018,646.57/30,239.68
  6. Step 6: Final answer
    x = 20,371.20

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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.