Home / 28,316.64-39,074.29-15,569.62

Finding the Fourth Proportional to 28,316.64, 39,074.29 and 15,569.62

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Solution

The fourth proportional to 28,316.64, 39,074.29 and 15,569.62 is: 21,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.64 : 39,074.29 = 15,569.62 : x
  2. Step 2: Convert to fraction form
    28,316.64/39,074.29 = 15,569.62/x
  3. Step 3: Cross multiply
    28,316.64x = 39,074.29 × 15,569.62
  4. Step 4: Simplify right side
    28,316.64x = 608,371,688.57
  5. Step 5: Solve for x
    x = 608,371,688.57/28,316.64
  6. Step 6: Final answer
    x = 21,484.60

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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.