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Finding the Fourth Proportional to 27,307.84, 37,681.90 and 15,370.98

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Solution

The fourth proportional to 27,307.84, 37,681.90 and 15,370.98 is: 21,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,307.84 : 37,681.90 = 15,370.98 : x
  2. Step 2: Convert to fraction form
    27,307.84/37,681.90 = 15,370.98/x
  3. Step 3: Cross multiply
    27,307.84x = 37,681.90 × 15,370.98
  4. Step 4: Simplify right side
    27,307.84x = 579,207,731.26
  5. Step 5: Solve for x
    x = 579,207,731.26/27,307.84
  6. Step 6: Final answer
    x = 21,210.31

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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.