Home / 31,468.74-47,390.59-28,384.26

Finding the Fourth Proportional to 31,468.74, 47,390.59 and 28,384.26

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Solution

The fourth proportional to 31,468.74, 47,390.59 and 28,384.26 is: 42,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,468.74 : 47,390.59 = 28,384.26 : x
  2. Step 2: Convert to fraction form
    31,468.74/47,390.59 = 28,384.26/x
  3. Step 3: Cross multiply
    31,468.74x = 47,390.59 × 28,384.26
  4. Step 4: Simplify right side
    31,468.74x = 1,345,146,828.11
  5. Step 5: Solve for x
    x = 1,345,146,828.11/31,468.74
  6. Step 6: Final answer
    x = 42,745.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.