Home / 30,036.78-45,052.65-9,260.46

Finding the Fourth Proportional to 30,036.78, 45,052.65 and 9,260.46

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Solution

The fourth proportional to 30,036.78, 45,052.65 and 9,260.46 is: 13,889.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,036.78 : 45,052.65 = 9,260.46 : x
  2. Step 2: Convert to fraction form
    30,036.78/45,052.65 = 9,260.46/x
  3. Step 3: Cross multiply
    30,036.78x = 45,052.65 × 9,260.46
  4. Step 4: Simplify right side
    30,036.78x = 417,208,263.22
  5. Step 5: Solve for x
    x = 417,208,263.22/30,036.78
  6. Step 6: Final answer
    x = 13,889.91

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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.