Home / 49,485.60-74,228.40-14,428.80

Finding the Fourth Proportional to 49,485.60, 74,228.40 and 14,428.80

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Solution

The fourth proportional to 49,485.60, 74,228.40 and 14,428.80 is: 21,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,485.60 : 74,228.40 = 14,428.80 : x
  2. Step 2: Convert to fraction form
    49,485.60/74,228.40 = 14,428.80/x
  3. Step 3: Cross multiply
    49,485.60x = 74,228.40 × 14,428.80
  4. Step 4: Simplify right side
    49,485.60x = 1,071,026,737.92
  5. Step 5: Solve for x
    x = 1,071,026,737.92/49,485.60
  6. Step 6: Final answer
    x = 21,643.20

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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.