Home / 31,128.08-46,700.28-10,351.76

Finding the Fourth Proportional to 31,128.08, 46,700.28 and 10,351.76

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Solution

The fourth proportional to 31,128.08, 46,700.28 and 10,351.76 is: 15,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,128.08 : 46,700.28 = 10,351.76 : x
  2. Step 2: Convert to fraction form
    31,128.08/46,700.28 = 10,351.76/x
  3. Step 3: Cross multiply
    31,128.08x = 46,700.28 × 10,351.76
  4. Step 4: Simplify right side
    31,128.08x = 483,430,090.49
  5. Step 5: Solve for x
    x = 483,430,090.49/31,128.08
  6. Step 6: Final answer
    x = 15,530.35

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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.