Home / 31,528.61-47,293.91-11,803.40

Finding the Fourth Proportional to 31,528.61, 47,293.91 and 11,803.40

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Solution

The fourth proportional to 31,528.61, 47,293.91 and 11,803.40 is: 17,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.61 : 47,293.91 = 11,803.40 : x
  2. Step 2: Convert to fraction form
    31,528.61/47,293.91 = 11,803.40/x
  3. Step 3: Cross multiply
    31,528.61x = 47,293.91 × 11,803.40
  4. Step 4: Simplify right side
    31,528.61x = 558,228,878.28
  5. Step 5: Solve for x
    x = 558,228,878.28/31,528.61
  6. Step 6: Final answer
    x = 17,705.47

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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.