Home / 39,307.22-54,244.21-21,402.76

Finding the Fourth Proportional to 39,307.22, 54,244.21 and 21,402.76

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Solution

The fourth proportional to 39,307.22, 54,244.21 and 21,402.76 is: 29,535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,307.22 : 54,244.21 = 21,402.76 : x
  2. Step 2: Convert to fraction form
    39,307.22/54,244.21 = 21,402.76/x
  3. Step 3: Cross multiply
    39,307.22x = 54,244.21 × 21,402.76
  4. Step 4: Simplify right side
    39,307.22x = 1,160,975,547.98
  5. Step 5: Solve for x
    x = 1,160,975,547.98/39,307.22
  6. Step 6: Final answer
    x = 29,535.93

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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.