Home / 28,430.94-39,242.51-16,498.13

Finding the Fourth Proportional to 28,430.94, 39,242.51 and 16,498.13

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Solution

The fourth proportional to 28,430.94, 39,242.51 and 16,498.13 is: 22,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.94 : 39,242.51 = 16,498.13 : x
  2. Step 2: Convert to fraction form
    28,430.94/39,242.51 = 16,498.13/x
  3. Step 3: Cross multiply
    28,430.94x = 39,242.51 × 16,498.13
  4. Step 4: Simplify right side
    28,430.94x = 647,427,814.67
  5. Step 5: Solve for x
    x = 647,427,814.67/28,430.94
  6. Step 6: Final answer
    x = 22,771.94

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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.