Home / 28,948.20-39,948.30-16,373.40

Finding the Fourth Proportional to 28,948.20, 39,948.30 and 16,373.40

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Solution

The fourth proportional to 28,948.20, 39,948.30 and 16,373.40 is: 22,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.20 : 39,948.30 = 16,373.40 : x
  2. Step 2: Convert to fraction form
    28,948.20/39,948.30 = 16,373.40/x
  3. Step 3: Cross multiply
    28,948.20x = 39,948.30 × 16,373.40
  4. Step 4: Simplify right side
    28,948.20x = 654,089,495.22
  5. Step 5: Solve for x
    x = 654,089,495.22/28,948.20
  6. Step 6: Final answer
    x = 22,595.17

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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.