Home / 30,339.63-41,875.65-19,710.81

Finding the Fourth Proportional to 30,339.63, 41,875.65 and 19,710.81

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Solution

The fourth proportional to 30,339.63, 41,875.65 and 19,710.81 is: 27,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.63 : 41,875.65 = 19,710.81 : x
  2. Step 2: Convert to fraction form
    30,339.63/41,875.65 = 19,710.81/x
  3. Step 3: Cross multiply
    30,339.63x = 41,875.65 × 19,710.81
  4. Step 4: Simplify right side
    30,339.63x = 825,402,980.78
  5. Step 5: Solve for x
    x = 825,402,980.78/30,339.63
  6. Step 6: Final answer
    x = 27,205.44

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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.