Home / 19,485.60-29,250.27-7,807.02

Finding the Fourth Proportional to 19,485.60, 29,250.27 and 7,807.02

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Solution

The fourth proportional to 19,485.60, 29,250.27 and 7,807.02 is: 11,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.60 : 29,250.27 = 7,807.02 : x
  2. Step 2: Convert to fraction form
    19,485.60/29,250.27 = 7,807.02/x
  3. Step 3: Cross multiply
    19,485.60x = 29,250.27 × 7,807.02
  4. Step 4: Simplify right side
    19,485.60x = 228,357,442.90
  5. Step 5: Solve for x
    x = 228,357,442.90/19,485.60
  6. Step 6: Final answer
    x = 11,719.29

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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.