Home / 28,547.02-42,829.85-12,750.13

Finding the Fourth Proportional to 28,547.02, 42,829.85 and 12,750.13

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Solution

The fourth proportional to 28,547.02, 42,829.85 and 12,750.13 is: 19,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.02 : 42,829.85 = 12,750.13 : x
  2. Step 2: Convert to fraction form
    28,547.02/42,829.85 = 12,750.13/x
  3. Step 3: Cross multiply
    28,547.02x = 42,829.85 × 12,750.13
  4. Step 4: Simplify right side
    28,547.02x = 546,086,155.38
  5. Step 5: Solve for x
    x = 546,086,155.38/28,547.02
  6. Step 6: Final answer
    x = 19,129.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.