Home / 28,368.48-39,145.14-16,430.22

Finding the Fourth Proportional to 28,368.48, 39,145.14 and 16,430.22

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Solution

The fourth proportional to 28,368.48, 39,145.14 and 16,430.22 is: 22,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.48 : 39,145.14 = 16,430.22 : x
  2. Step 2: Convert to fraction form
    28,368.48/39,145.14 = 16,430.22/x
  3. Step 3: Cross multiply
    28,368.48x = 39,145.14 × 16,430.22
  4. Step 4: Simplify right side
    28,368.48x = 643,163,262.13
  5. Step 5: Solve for x
    x = 643,163,262.13/28,368.48
  6. Step 6: Final answer
    x = 22,671.76

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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.