Home / 28,247.61-38,981.59-15,501.00

Finding the Fourth Proportional to 28,247.61, 38,981.59 and 15,501.00

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Solution

The fourth proportional to 28,247.61, 38,981.59 and 15,501.00 is: 21,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.61 : 38,981.59 = 15,501.00 : x
  2. Step 2: Convert to fraction form
    28,247.61/38,981.59 = 15,501.00/x
  3. Step 3: Cross multiply
    28,247.61x = 38,981.59 × 15,501.00
  4. Step 4: Simplify right side
    28,247.61x = 604,253,539.11
  5. Step 5: Solve for x
    x = 604,253,539.11/28,247.61
  6. Step 6: Final answer
    x = 21,391.32

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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.