Home / 28,708.03-43,065.29-13,123.63

Finding the Fourth Proportional to 28,708.03, 43,065.29 and 13,123.63

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Solution

The fourth proportional to 28,708.03, 43,065.29 and 13,123.63 is: 19,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.03 : 43,065.29 = 13,123.63 : x
  2. Step 2: Convert to fraction form
    28,708.03/43,065.29 = 13,123.63/x
  3. Step 3: Cross multiply
    28,708.03x = 43,065.29 × 13,123.63
  4. Step 4: Simplify right side
    28,708.03x = 565,172,931.80
  5. Step 5: Solve for x
    x = 565,172,931.80/28,708.03
  6. Step 6: Final answer
    x = 19,686.93

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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.