Home / 31,579.02-47,351.12-12,854.25

Finding the Fourth Proportional to 31,579.02, 47,351.12 and 12,854.25

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Solution

The fourth proportional to 31,579.02, 47,351.12 and 12,854.25 is: 19,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.02 : 47,351.12 = 12,854.25 : x
  2. Step 2: Convert to fraction form
    31,579.02/47,351.12 = 12,854.25/x
  3. Step 3: Cross multiply
    31,579.02x = 47,351.12 × 12,854.25
  4. Step 4: Simplify right side
    31,579.02x = 608,663,069.99
  5. Step 5: Solve for x
    x = 608,663,069.99/31,579.02
  6. Step 6: Final answer
    x = 19,274.29

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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.