Home / 43,070.24-64,605.35-13,490.39

Finding the Fourth Proportional to 43,070.24, 64,605.35 and 13,490.39

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Solution

The fourth proportional to 43,070.24, 64,605.35 and 13,490.39 is: 20,235.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,070.24 : 64,605.35 = 13,490.39 : x
  2. Step 2: Convert to fraction form
    43,070.24/64,605.35 = 13,490.39/x
  3. Step 3: Cross multiply
    43,070.24x = 64,605.35 × 13,490.39
  4. Step 4: Simplify right side
    43,070.24x = 871,550,977.11
  5. Step 5: Solve for x
    x = 871,550,977.11/43,070.24
  6. Step 6: Final answer
    x = 20,235.58

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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.