Home / 31,211.76-46,807.86-10,430.40

Finding the Fourth Proportional to 31,211.76, 46,807.86 and 10,430.40

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Solution

The fourth proportional to 31,211.76, 46,807.86 and 10,430.40 is: 15,642.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,211.76 : 46,807.86 = 10,430.40 : x
  2. Step 2: Convert to fraction form
    31,211.76/46,807.86 = 10,430.40/x
  3. Step 3: Cross multiply
    31,211.76x = 46,807.86 × 10,430.40
  4. Step 4: Simplify right side
    31,211.76x = 488,224,702.94
  5. Step 5: Solve for x
    x = 488,224,702.94/31,211.76
  6. Step 6: Final answer
    x = 15,642.33

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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.