Home / 39,341.50-54,291.90-21,436.52

Finding the Fourth Proportional to 39,341.50, 54,291.90 and 21,436.52

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Solution

The fourth proportional to 39,341.50, 54,291.90 and 21,436.52 is: 29,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.50 : 54,291.90 = 21,436.52 : x
  2. Step 2: Convert to fraction form
    39,341.50/54,291.90 = 21,436.52/x
  3. Step 3: Cross multiply
    39,341.50x = 54,291.90 × 21,436.52
  4. Step 4: Simplify right side
    39,341.50x = 1,163,829,400.19
  5. Step 5: Solve for x
    x = 1,163,829,400.19/39,341.50
  6. Step 6: Final answer
    x = 29,582.74

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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.