Home / 39,765.07-59,647.61-18,689.63

Finding the Fourth Proportional to 39,765.07, 59,647.61 and 18,689.63

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Solution

The fourth proportional to 39,765.07, 59,647.61 and 18,689.63 is: 28,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.07 : 59,647.61 = 18,689.63 : x
  2. Step 2: Convert to fraction form
    39,765.07/59,647.61 = 18,689.63/x
  3. Step 3: Cross multiply
    39,765.07x = 59,647.61 × 18,689.63
  4. Step 4: Simplify right side
    39,765.07x = 1,114,791,957.13
  5. Step 5: Solve for x
    x = 1,114,791,957.13/39,765.07
  6. Step 6: Final answer
    x = 28,034.45

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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.