Home / 30,538.81-45,799.71-10,812.07

Finding the Fourth Proportional to 30,538.81, 45,799.71 and 10,812.07

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Solution

The fourth proportional to 30,538.81, 45,799.71 and 10,812.07 is: 16,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,538.81 : 45,799.71 = 10,812.07 : x
  2. Step 2: Convert to fraction form
    30,538.81/45,799.71 = 10,812.07/x
  3. Step 3: Cross multiply
    30,538.81x = 45,799.71 × 10,812.07
  4. Step 4: Simplify right side
    30,538.81x = 495,189,670.50
  5. Step 5: Solve for x
    x = 495,189,670.50/30,538.81
  6. Step 6: Final answer
    x = 16,215.09

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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.