Home / 31,205.12-46,807.70-10,428.62

Finding the Fourth Proportional to 31,205.12, 46,807.70 and 10,428.62

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Solution

The fourth proportional to 31,205.12, 46,807.70 and 10,428.62 is: 15,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.12 : 46,807.70 = 10,428.62 : x
  2. Step 2: Convert to fraction form
    31,205.12/46,807.70 = 10,428.62/x
  3. Step 3: Cross multiply
    31,205.12x = 46,807.70 × 10,428.62
  4. Step 4: Simplify right side
    31,205.12x = 488,139,430.19
  5. Step 5: Solve for x
    x = 488,139,430.19/31,205.12
  6. Step 6: Final answer
    x = 15,642.93

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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.