Home / 38,430.70-57,646.39-13,470.71

Finding the Fourth Proportional to 38,430.70, 57,646.39 and 13,470.71

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Solution

The fourth proportional to 38,430.70, 57,646.39 and 13,470.71 is: 20,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430.70 : 57,646.39 = 13,470.71 : x
  2. Step 2: Convert to fraction form
    38,430.70/57,646.39 = 13,470.71/x
  3. Step 3: Cross multiply
    38,430.70x = 57,646.39 × 13,470.71
  4. Step 4: Simplify right side
    38,430.70x = 776,537,802.24
  5. Step 5: Solve for x
    x = 776,537,802.24/38,430.70
  6. Step 6: Final answer
    x = 20,206.18

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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.