Home / 23,030.40-31,785.84-13,603.62

Finding the Fourth Proportional to 23,030.40, 31,785.84 and 13,603.62

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Solution

The fourth proportional to 23,030.40, 31,785.84 and 13,603.62 is: 18,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.40 : 31,785.84 = 13,603.62 : x
  2. Step 2: Convert to fraction form
    23,030.40/31,785.84 = 13,603.62/x
  3. Step 3: Cross multiply
    23,030.40x = 31,785.84 × 13,603.62
  4. Step 4: Simplify right side
    23,030.40x = 432,402,488.74
  5. Step 5: Solve for x
    x = 432,402,488.74/23,030.40
  6. Step 6: Final answer
    x = 18,775.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.