Home / 28,323.68-39,085.84-15,576.91

Finding the Fourth Proportional to 28,323.68, 39,085.84 and 15,576.91

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Solution

The fourth proportional to 28,323.68, 39,085.84 and 15,576.91 is: 21,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.68 : 39,085.84 = 15,576.91 : x
  2. Step 2: Convert to fraction form
    28,323.68/39,085.84 = 15,576.91/x
  3. Step 3: Cross multiply
    28,323.68x = 39,085.84 × 15,576.91
  4. Step 4: Simplify right side
    28,323.68x = 608,836,533.71
  5. Step 5: Solve for x
    x = 608,836,533.71/28,323.68
  6. Step 6: Final answer
    x = 21,495.68

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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.