Home / 31,866.90-47,707.98-28,490.04

Finding the Fourth Proportional to 31,866.90, 47,707.98 and 28,490.04

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Solution

The fourth proportional to 31,866.90, 47,707.98 and 28,490.04 is: 42,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866.90 : 47,707.98 = 28,490.04 : x
  2. Step 2: Convert to fraction form
    31,866.90/47,707.98 = 28,490.04/x
  3. Step 3: Cross multiply
    31,866.90x = 47,707.98 × 28,490.04
  4. Step 4: Simplify right side
    31,866.90x = 1,359,202,258.52
  5. Step 5: Solve for x
    x = 1,359,202,258.52/31,866.90
  6. Step 6: Final answer
    x = 42,652.48

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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.