Home / 30,256.79-45,384.12-11,536.13

Finding the Fourth Proportional to 30,256.79, 45,384.12 and 11,536.13

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Solution

The fourth proportional to 30,256.79, 45,384.12 and 11,536.13 is: 17,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,256.79 : 45,384.12 = 11,536.13 : x
  2. Step 2: Convert to fraction form
    30,256.79/45,384.12 = 11,536.13/x
  3. Step 3: Cross multiply
    30,256.79x = 45,384.12 × 11,536.13
  4. Step 4: Simplify right side
    30,256.79x = 523,556,881.34
  5. Step 5: Solve for x
    x = 523,556,881.34/30,256.79
  6. Step 6: Final answer
    x = 17,303.78

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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.