Home / 30,055.52-45,087.38-12,521.26

Finding the Fourth Proportional to 30,055.52, 45,087.38 and 12,521.26

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Solution

The fourth proportional to 30,055.52, 45,087.38 and 12,521.26 is: 18,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,055.52 : 45,087.38 = 12,521.26 : x
  2. Step 2: Convert to fraction form
    30,055.52/45,087.38 = 12,521.26/x
  3. Step 3: Cross multiply
    30,055.52x = 45,087.38 × 12,521.26
  4. Step 4: Simplify right side
    30,055.52x = 564,550,807.70
  5. Step 5: Solve for x
    x = 564,550,807.70/30,055.52
  6. Step 6: Final answer
    x = 18,783.60

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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.