Home / 28,332.48-39,098.16-15,758.40

Finding the Fourth Proportional to 28,332.48, 39,098.16 and 15,758.40

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Solution

The fourth proportional to 28,332.48, 39,098.16 and 15,758.40 is: 21,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.48 : 39,098.16 = 15,758.40 : x
  2. Step 2: Convert to fraction form
    28,332.48/39,098.16 = 15,758.40/x
  3. Step 3: Cross multiply
    28,332.48x = 39,098.16 × 15,758.40
  4. Step 4: Simplify right side
    28,332.48x = 616,124,444.54
  5. Step 5: Solve for x
    x = 616,124,444.54/28,332.48
  6. Step 6: Final answer
    x = 21,746.22

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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.