Home / 28,564.02-39,418.32-15,988.74

Finding the Fourth Proportional to 28,564.02, 39,418.32 and 15,988.74

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Solution

The fourth proportional to 28,564.02, 39,418.32 and 15,988.74 is: 22,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.02 : 39,418.32 = 15,988.74 : x
  2. Step 2: Convert to fraction form
    28,564.02/39,418.32 = 15,988.74/x
  3. Step 3: Cross multiply
    28,564.02x = 39,418.32 × 15,988.74
  4. Step 4: Simplify right side
    28,564.02x = 630,249,269.72
  5. Step 5: Solve for x
    x = 630,249,269.72/28,564.02
  6. Step 6: Final answer
    x = 22,064.45

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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.