Home / 31,211.61-46,807.69-10,430.25

Finding the Fourth Proportional to 31,211.61, 46,807.69 and 10,430.25

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Solution

The fourth proportional to 31,211.61, 46,807.69 and 10,430.25 is: 15,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,211.61 : 46,807.69 = 10,430.25 : x
  2. Step 2: Convert to fraction form
    31,211.61/46,807.69 = 10,430.25/x
  3. Step 3: Cross multiply
    31,211.61x = 46,807.69 × 10,430.25
  4. Step 4: Simplify right side
    31,211.61x = 488,215,908.62
  5. Step 5: Solve for x
    x = 488,215,908.62/31,211.61
  6. Step 6: Final answer
    x = 15,642.13

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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.