Home / 39,890.27-59,830.74-10,305.78

Finding the Fourth Proportional to 39,890.27, 59,830.74 and 10,305.78

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Solution

The fourth proportional to 39,890.27, 59,830.74 and 10,305.78 is: 15,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,890.27 : 59,830.74 = 10,305.78 : x
  2. Step 2: Convert to fraction form
    39,890.27/59,830.74 = 10,305.78/x
  3. Step 3: Cross multiply
    39,890.27x = 59,830.74 × 10,305.78
  4. Step 4: Simplify right side
    39,890.27x = 616,602,443.68
  5. Step 5: Solve for x
    x = 616,602,443.68/39,890.27
  6. Step 6: Final answer
    x = 15,457.47

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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.