Home / 30,152.81-45,223.06-11,426.39

Finding the Fourth Proportional to 30,152.81, 45,223.06 and 11,426.39

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Solution

The fourth proportional to 30,152.81, 45,223.06 and 11,426.39 is: 17,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.81 : 45,223.06 = 11,426.39 : x
  2. Step 2: Convert to fraction form
    30,152.81/45,223.06 = 11,426.39/x
  3. Step 3: Cross multiply
    30,152.81x = 45,223.06 × 11,426.39
  4. Step 4: Simplify right side
    30,152.81x = 516,736,384.07
  5. Step 5: Solve for x
    x = 516,736,384.07/30,152.81
  6. Step 6: Final answer
    x = 17,137.26

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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.