Home / 40,478.07-60,665.07-19,386.48

Finding the Fourth Proportional to 40,478.07, 60,665.07 and 19,386.48

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Solution

The fourth proportional to 40,478.07, 60,665.07 and 19,386.48 is: 29,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,478.07 : 60,665.07 = 19,386.48 : x
  2. Step 2: Convert to fraction form
    40,478.07/60,665.07 = 19,386.48/x
  3. Step 3: Cross multiply
    40,478.07x = 60,665.07 × 19,386.48
  4. Step 4: Simplify right side
    40,478.07x = 1,176,082,166.25
  5. Step 5: Solve for x
    x = 1,176,082,166.25/40,478.07
  6. Step 6: Final answer
    x = 29,054.80

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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.