Home / 31,528.63-47,302.26-12,805.08

Finding the Fourth Proportional to 31,528.63, 47,302.26 and 12,805.08

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Solution

The fourth proportional to 31,528.63, 47,302.26 and 12,805.08 is: 19,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.63 : 47,302.26 = 12,805.08 : x
  2. Step 2: Convert to fraction form
    31,528.63/47,302.26 = 12,805.08/x
  3. Step 3: Cross multiply
    31,528.63x = 47,302.26 × 12,805.08
  4. Step 4: Simplify right side
    31,528.63x = 605,709,223.48
  5. Step 5: Solve for x
    x = 605,709,223.48/31,528.63
  6. Step 6: Final answer
    x = 19,211.40

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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.