Home / 30,528,762.24-42,085,310.40-21,332,853.12

Finding the Fourth Proportional to 30,528,762.24, 42,085,310.40 and 21,332,853.12

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Solution

The fourth proportional to 30,528,762.24, 42,085,310.40 and 21,332,853.12 is: 29,408,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,762.24 : 42,085,310.40 = 21,332,853.12 : x
  2. Step 2: Convert to fraction form
    30,528,762.24/42,085,310.40 = 21,332,853.12/x
  3. Step 3: Cross multiply
    30,528,762.24x = 42,085,310.40 × 21,332,853.12
  4. Step 4: Simplify right side
    30,528,762.24x = 897,799,745,272,808.50
  5. Step 5: Solve for x
    x = 897,799,745,272,808.50/30,528,762.24
  6. Step 6: Final answer
    x = 29,408,324.46

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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.