Home / 30,421.52-45,641.40-11,703.24

Finding the Fourth Proportional to 30,421.52, 45,641.40 and 11,703.24

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Solution

The fourth proportional to 30,421.52, 45,641.40 and 11,703.24 is: 17,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.52 : 45,641.40 = 11,703.24 : x
  2. Step 2: Convert to fraction form
    30,421.52/45,641.40 = 11,703.24/x
  3. Step 3: Cross multiply
    30,421.52x = 45,641.40 × 11,703.24
  4. Step 4: Simplify right side
    30,421.52x = 534,152,258.14
  5. Step 5: Solve for x
    x = 534,152,258.14/30,421.52
  6. Step 6: Final answer
    x = 17,558.37

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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.