Home / 28,035.95-38,681.06-15,935.51

Finding the Fourth Proportional to 28,035.95, 38,681.06 and 15,935.51

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Solution

The fourth proportional to 28,035.95, 38,681.06 and 15,935.51 is: 21,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.95 : 38,681.06 = 15,935.51 : x
  2. Step 2: Convert to fraction form
    28,035.95/38,681.06 = 15,935.51/x
  3. Step 3: Cross multiply
    28,035.95x = 38,681.06 × 15,935.51
  4. Step 4: Simplify right side
    28,035.95x = 616,402,435.47
  5. Step 5: Solve for x
    x = 616,402,435.47/28,035.95
  6. Step 6: Final answer
    x = 21,986.15

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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.