Home / 27,406.65-37,820.23-15,307.77

Finding the Fourth Proportional to 27,406.65, 37,820.23 and 15,307.77

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Solution

The fourth proportional to 27,406.65, 37,820.23 and 15,307.77 is: 21,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,406.65 : 37,820.23 = 15,307.77 : x
  2. Step 2: Convert to fraction form
    27,406.65/37,820.23 = 15,307.77/x
  3. Step 3: Cross multiply
    27,406.65x = 37,820.23 × 15,307.77
  4. Step 4: Simplify right side
    27,406.65x = 578,943,382.19
  5. Step 5: Solve for x
    x = 578,943,382.19/27,406.65
  6. Step 6: Final answer
    x = 21,124.19

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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.