Home / 31,205.10-46,807.65-13,656.30

Finding the Fourth Proportional to 31,205.10, 46,807.65 and 13,656.30

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Solution

The fourth proportional to 31,205.10, 46,807.65 and 13,656.30 is: 20,484.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.10 : 46,807.65 = 13,656.30 : x
  2. Step 2: Convert to fraction form
    31,205.10/46,807.65 = 13,656.30/x
  3. Step 3: Cross multiply
    31,205.10x = 46,807.65 × 13,656.30
  4. Step 4: Simplify right side
    31,205.10x = 639,219,310.70
  5. Step 5: Solve for x
    x = 639,219,310.70/31,205.10
  6. Step 6: Final answer
    x = 20,484.45

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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.