Home / 46,378.40-63,982.32-31,280.80

Finding the Fourth Proportional to 46,378.40, 63,982.32 and 31,280.80

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Solution

The fourth proportional to 46,378.40, 63,982.32 and 31,280.80 is: 43,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,378.40 : 63,982.32 = 31,280.80 : x
  2. Step 2: Convert to fraction form
    46,378.40/63,982.32 = 31,280.80/x
  3. Step 3: Cross multiply
    46,378.40x = 63,982.32 × 31,280.80
  4. Step 4: Simplify right side
    46,378.40x = 2,001,418,155.46
  5. Step 5: Solve for x
    x = 2,001,418,155.46/46,378.40
  6. Step 6: Final answer
    x = 43,154.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.