Home / 31,156.16-46,747.20-18,700.16

Finding the Fourth Proportional to 31,156.16, 46,747.20 and 18,700.16

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Solution

The fourth proportional to 31,156.16, 46,747.20 and 18,700.16 is: 28,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,156.16 : 46,747.20 = 18,700.16 : x
  2. Step 2: Convert to fraction form
    31,156.16/46,747.20 = 18,700.16/x
  3. Step 3: Cross multiply
    31,156.16x = 46,747.20 × 18,700.16
  4. Step 4: Simplify right side
    31,156.16x = 874,180,119.55
  5. Step 5: Solve for x
    x = 874,180,119.55/31,156.16
  6. Step 6: Final answer
    x = 28,058.02

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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.