Home / 40,888.10-61,332.19-12,808.39

Finding the Fourth Proportional to 40,888.10, 61,332.19 and 12,808.39

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Solution

The fourth proportional to 40,888.10, 61,332.19 and 12,808.39 is: 19,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,888.10 : 61,332.19 = 12,808.39 : x
  2. Step 2: Convert to fraction form
    40,888.10/61,332.19 = 12,808.39/x
  3. Step 3: Cross multiply
    40,888.10x = 61,332.19 × 12,808.39
  4. Step 4: Simplify right side
    40,888.10x = 785,566,609.07
  5. Step 5: Solve for x
    x = 785,566,609.07/40,888.10
  6. Step 6: Final answer
    x = 19,212.60

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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.