Home / 28,146.02-38,840.01-15,570.50

Finding the Fourth Proportional to 28,146.02, 38,840.01 and 15,570.50

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Solution

The fourth proportional to 28,146.02, 38,840.01 and 15,570.50 is: 21,486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.02 : 38,840.01 = 15,570.50 : x
  2. Step 2: Convert to fraction form
    28,146.02/38,840.01 = 15,570.50/x
  3. Step 3: Cross multiply
    28,146.02x = 38,840.01 × 15,570.50
  4. Step 4: Simplify right side
    28,146.02x = 604,758,375.71
  5. Step 5: Solve for x
    x = 604,758,375.71/28,146.02
  6. Step 6: Final answer
    x = 21,486.46

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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.